diff --git a/README.md b/README.md
index d6b5e97..2a64b54 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# TechPack V1.03
+# TechPack V1.04
 
 TechPack, a Mining, Crafting, & Farming Modpack for Minetest.
 
@@ -65,8 +65,9 @@ Textures: CC BY-SA 3.0
 
 ### Dependencies 
 default, doors.  
+Tubelib Color Lamps optional: unifieddyes  
 SmartLine Display optional: display_lib, font_lib  
-SmartLine Controller optional: mail,  
+SmartLine Controller optional: mail  
 Gravelsieve optional: moreores, hopper, pipeworks  
 
 
@@ -75,3 +76,4 @@ Gravelsieve optional: moreores, hopper, pipeworks
 - 2018-03-24  V1.01  * Support for Ethereal added
 - 2018-03-27  V1.02  * Timer improvements for unloaded areas
 - 2018-03-29  V1.03  * Area protected chest added to tubelib_addons1
+- 2018-03-31  V1.04  * Maintenance, minor issues, Unifieddyes support for Color Lamp 
diff --git a/smartline/controller.lua b/smartline/controller.lua
index 81603ac..bdd6c41 100644
--- a/smartline/controller.lua
+++ b/smartline/controller.lua
@@ -813,7 +813,7 @@ minetest.register_node("smartline:controller", {
 	
 	after_place_node = function(pos, placer)
 		local meta = minetest.get_meta(pos)
-		local number = tubelib.add_node(pos, "smartline:controller")
+		local number = tubelib.add_node(pos)
 		local fs_data = {}
 		meta:set_string("fs_data", minetest.serialize(fs_data)) 
 		meta:set_string("owner", placer:get_player_name())
diff --git a/smartline/display.lua b/smartline/display.lua
index 6ae1f93..9db68c7 100644
--- a/smartline/display.lua
+++ b/smartline/display.lua
@@ -51,7 +51,7 @@ minetest.register_node("smartline:display", {
 	},
 
 	after_place_node = function(pos, placer)
-		local number = tubelib.add_node(pos, "smartline:display")
+		local number = tubelib.add_node(pos)
 		local meta = minetest.get_meta(pos)
 		meta:set_string("number", number)
 		meta:set_string("text", " \n \nMinetest\nSmartLine Tools\n \nDisplay\nNumber: "..number)
diff --git a/smartline/playerdetector.lua b/smartline/playerdetector.lua
index 26a7dac..7f25d0a 100644
--- a/smartline/playerdetector.lua
+++ b/smartline/playerdetector.lua
@@ -121,7 +121,7 @@ minetest.register_node("smartline:playerdetector", {
 		},
 	},
 	after_place_node = function(pos, placer)
-		local number = tubelib.add_node(pos, "smartline:playerdetector")
+		local number = tubelib.add_node(pos)
 		local meta = minetest.get_meta(pos)
 		meta:set_string("number", number)
 		local numbers = meta:get_string("numbers") or ""
diff --git a/smartline/repeater.lua b/smartline/repeater.lua
index b44d604..cebc841 100644
--- a/smartline/repeater.lua
+++ b/smartline/repeater.lua
@@ -45,7 +45,7 @@ minetest.register_node("smartline:repeater", {
 
 	after_place_node = function(pos, placer)
 		local meta = minetest.get_meta(pos)
-		local own_number = tubelib.add_node(pos, "smartline:repeater")
+		local own_number = tubelib.add_node(pos)
 		meta:set_string("own_number", own_number)
 		meta:set_string("formspec", formspec(meta))
 		meta:set_string("infotext", "SmartLine Repeater "..own_number..": not connected")
diff --git a/smartline/sequencer.lua b/smartline/sequencer.lua
index d19253b..65eb37a 100644
--- a/smartline/sequencer.lua
+++ b/smartline/sequencer.lua
@@ -69,7 +69,7 @@ local function stop_the_sequencer(pos)
 	local meta = minetest.get_meta(pos)
 	local number = meta:get_string("number")
 	meta:set_int("running", STOP_STATE)
-	meta:set_string("infotext", "Tubelib Sequencer "..number..": stopped")
+	meta:set_string("infotext", "SmartLine Sequencer "..number..": stopped")
 	local rules = minetest.deserialize(meta:get_string("rules"))
 	local endless = meta:get_int("endless") or 0
 	meta:set_string("formspec", formspec(tubelib.STOPPED, rules, endless))
@@ -119,7 +119,7 @@ local function check_rules(pos, elapsed)
 				if index == 1 and offs < 1 then
 					offs = 2
 				end
-				meta:set_string("infotext", "Tubelib Sequencer "..number..": running ("..index.."/"..NUM_SLOTS..")")
+				meta:set_string("infotext", "SmartLine Sequencer "..number..": running ("..index.."/"..NUM_SLOTS..")")
 				meta:set_int("index", index)
 				if offs > 0 then
 					minetest.after(0, restart_timer, pos, offs)
@@ -222,7 +222,7 @@ minetest.register_node("smartline:sequencer", {
 	},
 	after_place_node = function(pos, placer)
 		local meta = minetest.get_meta(pos)
-		local number = tubelib.add_node(pos, "smartline:sequencer")
+		local number = tubelib.add_node(pos)
 		local rules = {}
 		for idx = 1,NUM_SLOTS do
 			rules[idx] = {offs = "", num = "", act = 1}
@@ -234,6 +234,7 @@ minetest.register_node("smartline:sequencer", {
 		meta:set_int("endless", 0)
 		meta:get_int("running", STOP_STATE)
 		meta:set_string("formspec", formspec(tubelib.STOPPED, rules, 0))
+		meta:set_string("infotext", "SmartLine Sequencer "..number)
 	end,
 
 	on_receive_fields = on_receive_fields,
diff --git a/smartline/signaltower.lua b/smartline/signaltower.lua
index 9af2555..9d7ea72 100644
--- a/smartline/signaltower.lua
+++ b/smartline/signaltower.lua
@@ -44,7 +44,7 @@ minetest.register_node("smartline:signaltower", {
 	},
 	
 	after_place_node = function(pos, placer)
-		local number = tubelib.add_node(pos, "smartline:signaltower")
+		local number = tubelib.add_node(pos)
 		local meta = minetest.get_meta(pos)
 		meta:set_string("state", "off")
 		meta:set_string("infotext", "SmartLine Signal Tower "..number)
diff --git a/smartline/timer.lua b/smartline/timer.lua
index 0053b15..fc84c36 100644
--- a/smartline/timer.lua
+++ b/smartline/timer.lua
@@ -152,7 +152,7 @@ minetest.register_node("smartline:timer", {
 		local numbers = {"0000","","","","",""}
 		local actions = {"","","","","",""}
 		local done = {false,false,false,false,false,false}
-		local own_num = tubelib.add_node(pos, "smartline:timer")
+		local own_num = tubelib.add_node(pos)
 		meta:set_string("own_num", own_num)
 		meta:set_string("placer_name", placer:get_player_name())
 		meta:set_string("events",  minetest.serialize(events))
diff --git a/tubelib/api.md b/tubelib/api.md
index 7abac5a..a671391 100644
--- a/tubelib/api.md
+++ b/tubelib/api.md
@@ -126,6 +126,7 @@ Parameters:
 The function is used to register the nodes position for the communication node 
 number and to update the tube surrounding.
 `pos` the node position, `name` is the node name.
+If 'name' is nil, the tube surrounding is not updated, which should be used for nodes without tube connection.
 
   
 
@@ -197,18 +198,12 @@ Because several nodes could be addressed, the function don't return any response
 
 
 ```LUA
-    tubelib.send_request(number, placer_name, clicker_name, topic, payload)
+    tubelib.send_request(number, topic, payload)
 ```
 In contrast to `send_message` this functions send a message to exactly one node 
 referenced by `number` and returns the node response. 
 The message is based on the topic string (e.g. "state") and
 topic related payload.
-The placer and clicker names are needed to check the protection rights. 
-`placer_name` is the name of the player, who places the node.
-`clicker_name` is the name of the player, who uses the node.
-`placer_name` of sending and receiving nodes have to be the same.
-If every player should be able to send a message, use nil for clicker_name.
-
   
 
 ## 4. Code Snippets
@@ -286,3 +281,4 @@ This file has further helper functions and is recommended for deeper study.
 
 2017-10-02  First draft  
 2017-10-29  Commands start/stop replaced by on/off
+2018-03-31  Corrections for 'send_request' and 'add_node'
diff --git a/tubelib/blackhole.lua b/tubelib/blackhole.lua
index 83d00a2..7d1ca23 100644
--- a/tubelib/blackhole.lua
+++ b/tubelib/blackhole.lua
@@ -49,6 +49,7 @@ minetest.register_node("tubelib:blackhole", {
 		tubelib.remove_node(pos) -- <<=== tubelib
 	end,
 
+	on_rotate = screwdriver.disallow,
 	paramtype = "light",
 	sunlight_propagates = true,
 	paramtype2 = "facedir",
diff --git a/tubelib/button.lua b/tubelib/button.lua
index 8f8ec84..78767f1 100644
--- a/tubelib/button.lua
+++ b/tubelib/button.lua
@@ -70,7 +70,7 @@ minetest.register_node("tubelib:button", {
 
 	after_place_node = function(pos, placer)
 		local meta = minetest.get_meta(pos)
-		local own_num = tubelib.add_node(pos, "tubelib:button")
+		local own_num = tubelib.add_node(pos)
 		meta:set_string("own_num", own_num)
 		meta:set_string("formspec", "size[5,6]"..
 		"dropdown[0.2,0;3;type;switch,button 2s,button 4s,button 8s,button 16s;1]".. 
@@ -123,6 +123,7 @@ minetest.register_node("tubelib:button", {
 		end
 	end,
 
+	on_rotate = screwdriver.disallow,
 	paramtype = "light",
 	sunlight_propagates = true,
 	paramtype2 = "facedir",
@@ -153,6 +154,7 @@ minetest.register_node("tubelib:button_active", {
 	end,
 
 	on_timer = switch_off,
+	on_rotate = screwdriver.disallow,
 
 	paramtype = "light",
 	sunlight_propagates = true,
diff --git a/tubelib/command.lua b/tubelib/command.lua
index 8a48fb8..ef6f269 100644
--- a/tubelib/command.lua
+++ b/tubelib/command.lua
@@ -161,15 +161,19 @@ end
 -- Add node to the tubelib lists and update the tube surrounding.
 -- Function determines and returns the node position number,
 -- needed for message communication.
+-- If 'name' is nil, the tube surrounding is not updated,
+-- which should be used for nodes without tube connection.
 function tubelib.add_node(pos, name)
 	-- store position 
 	local number = get_number(pos)
-	Number2Pos[number] = {
-		pos = pos, 
-		name = name,
-	}
-	-- update surrounding tubes
-	tubelib.update_tubes(pos)
+	if name then
+		Number2Pos[number] = {
+			pos = pos, 
+			name = name,
+		}
+		-- update surrounding tubes
+		tubelib.update_tubes(pos)
+	end
 	return number
 end
 
diff --git a/tubelib/distributor.lua b/tubelib/distributor.lua
index ef7d1b9..151ffc1 100644
--- a/tubelib/distributor.lua
+++ b/tubelib/distributor.lua
@@ -360,6 +360,7 @@ minetest.register_node("tubelib:distributor", {
 	allow_metadata_inventory_move = allow_metadata_inventory_move,
 
 	on_timer = keep_running,
+	on_rotate = screwdriver.disallow,
 	
 	paramtype = "light",
 	sunlight_propagates = true,
@@ -398,6 +399,7 @@ minetest.register_node("tubelib:distributor_active", {
 	allow_metadata_inventory_move = allow_metadata_inventory_move,
 
 	on_timer = keep_running,
+	on_rotate = screwdriver.disallow,
 
 	paramtype = "light",
 	sunlight_propagates = true,
diff --git a/tubelib/lamp.lua b/tubelib/lamp.lua
index a0129d7..2264496 100644
--- a/tubelib/lamp.lua
+++ b/tubelib/lamp.lua
@@ -35,7 +35,7 @@ minetest.register_node("tubelib:lamp", {
 	},
 
 	after_place_node = function(pos, placer)
-		local number = tubelib.add_node(pos, "tubelib:lamp")  -- <<=== tubelib
+		local number = tubelib.add_node(pos)  -- <<=== tubelib
 		local meta = minetest.get_meta(pos)
 		meta:set_string("infotext", "Tubelib Lamp "..number)
 	end,
diff --git a/tubelib/pusher.lua b/tubelib/pusher.lua
index 47f527e..012efc3 100644
--- a/tubelib/pusher.lua
+++ b/tubelib/pusher.lua
@@ -136,6 +136,7 @@ minetest.register_node("tubelib:pusher", {
 	end,
 	
 	on_timer = keep_running,
+	on_rotate = screwdriver.disallow,
 
 	paramtype = "light",
 	sunlight_propagates = true,
@@ -201,6 +202,7 @@ minetest.register_node("tubelib:pusher_active", {
 	end,
 	
 	on_timer = keep_running,
+	on_rotate = screwdriver.disallow,
 	
 	paramtype = "light",
 	sunlight_propagates = true,
diff --git a/tubelib/tubes.lua b/tubelib/tubes.lua
index ebe478a..704d231 100644
--- a/tubelib/tubes.lua
+++ b/tubelib/tubes.lua
@@ -17,19 +17,19 @@
 local MAX_TUBE_LENGTH = 100
 
 local TubeTypes = {
-	0,0,0,0,0,0,1,3,1,3,	-- 01-10
-	4,5,3,1,3,1,4,5,1,3,	-- 11-20
-	1,3,4,5,3,1,3,1,4,5,	-- 21-30
-	2,2,2,2,0,2,2,2,5,2,	-- 31-40
-	5,0,					-- 40-41
+	0,0,0,0,0,0,1,3,1,3,    -- 01-10
+	4,5,3,1,3,1,4,5,1,3,    -- 11-20
+	1,3,4,5,3,1,3,1,4,5,    -- 21-30
+	2,2,2,2,0,2,2,2,5,2,    -- 31-40
+	5,0,                    -- 40-41
 }
 
 local TubeFacedir = {
-	0,0,0,0,0,0,0,2,0,1,	-- 01-10
-	2,2,2,1,3,1,3,3,0,3,	-- 11-20
-	0,0,0,0,1,1,0,1,1,1,	-- 21-30
-	0,0,0,0,0,0,0,0,0,0,	-- 31-40
-	0,0,					-- 40-41
+	0,0,0,0,0,0,0,2,0,1,    -- 01-10
+	2,2,2,1,3,1,3,3,0,3,    -- 11-20
+	0,0,0,0,1,1,0,1,1,1,    -- 21-30
+	0,0,0,0,0,0,0,0,0,0,    -- 31-40
+	0,0,                    -- 40-41
 }
 
 tubelib.knownNodes = {
@@ -78,14 +78,14 @@ local function remote_node(pos, npos)
 		local dest_pos2 = minetest.string_to_pos(minetest.get_meta(npos):get_string("dest_pos2"))
 		if dest_pos2 == nil then
 			local facedir = minetest.get_meta(npos):get_int("facedir")
-			return pos, facedir						-- node connected with itself
+			return pos, facedir                     -- node connected with itself
 		else
 			local facedir2 = minetest.get_meta(npos):get_int("facedir2")
-			return dest_pos2, facedir2  			-- one tube connection
+			return dest_pos2, facedir2              -- one tube connection
 		end
 	else
 		local facedir = minetest.get_meta(npos):get_int("facedir")
-		return dest_pos, facedir					-- multi tube connection
+		return dest_pos, facedir                    -- multi tube connection
 	end
 end
 
@@ -252,7 +252,7 @@ local function update_head_tubes(pos)
 		local cnt1, peer1, dest1 = walk_to_peer(pos, pos1)
 		local cnt2, peer2, dest2 = walk_to_peer(pos, pos2)
 		
-		if cnt1 == 0 and cnt2 == 0 then	-- first tube node placed?
+		if cnt1 == 0 and cnt2 == 0 then  -- first tube node placed?
 			-- we have to store both dest positions
 			minetest.get_meta(peer1):set_string("dest_pos", minetest.pos_to_string(dest1))
 			minetest.get_meta(peer1):set_int("facedir", dir_to_facedir(peer1, dest1))
@@ -277,7 +277,7 @@ local function update_head_tubes(pos)
 	return 0
 end	
 		
--- Update all tubes arround the currently placed tube		
+-- Update all tubes arround the currently placed tube
 local function update_surrounding_tubes(pos)
 	update_tube({x=pos.x  , y=pos.y  , z=pos.z+1})
 	update_tube({x=pos.x+1, y=pos.y  , z=pos.z  })
@@ -314,14 +314,14 @@ function tubelib.update_tubes(pos)
 end		
 	
 local DefNodeboxes = {
-    -- x1   y1    z1     x2   y2   z2
-    { -1/4, -1/4, -1/4,  1/4, 1/4, 1/4 },
-    { -1/4, -1/4, -1/4,  1/4, 1/4, 1/4 },
+	-- x1   y1    z1     x2   y2   z2
+	{ -1/4, -1/4, -1/4,  1/4, 1/4, 1/4 },
+	{ -1/4, -1/4, -1/4,  1/4, 1/4, 1/4 },
 }
 
 local DirCorrections = {
-    {3, 6}, {2, 5},             -- standard tubes
-    {3, 1}, {3, 2}, {3, 5},   	-- knees from front to..
+	{3, 6}, {2, 5},             -- standard tubes
+	{3, 1}, {3, 2}, {3, 5},     -- knees from front to..
 }
 
 local SelectBoxes = {
@@ -350,37 +350,37 @@ local TilesData = {
 		"tubelib_tube.png^[transformR90",
         "tubelib_tube.png^[transformR90",
 	},
-    {
-        "tubelib_knee.png^[transformR270",
-        "tubelib_knee.png^[transformR180",
-        "tubelib_knee2.png^[transformR270",
-        "tubelib_hole2.png^[transformR90",
-        "tubelib_knee2.png^[transformR90",
-        "tubelib_hole2.png^[transformR270",
-    },
-    {
-        "tubelib_knee2.png",
-        "tubelib_hole2.png^[transformR180",
-        "tubelib_knee.png^[transformR270",
-        "tubelib_knee.png",
-        "tubelib_knee2.png",
-        "tubelib_hole2.png",
-    },
-    {
-        "tubelib_hole2.png",
-        "tubelib_knee2.png^[transformR180",
-        "tubelib_knee.png^[transformR180",
-        "tubelib_knee.png^[transformR90",
-        "tubelib_knee2.png^[transformR180",
-        "tubelib_hole2.png^[transformR180",
-    },
+	{
+		"tubelib_knee.png^[transformR270",
+		"tubelib_knee.png^[transformR180",
+		"tubelib_knee2.png^[transformR270",
+		"tubelib_hole2.png^[transformR90",
+		"tubelib_knee2.png^[transformR90",
+		"tubelib_hole2.png^[transformR270",
+	},
+	{
+		"tubelib_knee2.png",
+		"tubelib_hole2.png^[transformR180",
+		"tubelib_knee.png^[transformR270",
+		"tubelib_knee.png",
+		"tubelib_knee2.png",
+		"tubelib_hole2.png",
+	},
+	{
+		"tubelib_hole2.png",
+		"tubelib_knee2.png^[transformR180",
+		"tubelib_knee.png^[transformR180",
+		"tubelib_knee.png^[transformR90",
+		"tubelib_knee2.png^[transformR180",
+		"tubelib_hole2.png^[transformR180",
+	},
 }
 
 
 for idx,pos in ipairs(DirCorrections) do
-    node_box_data = table.copy(DefNodeboxes)
-    node_box_data[1][pos[1]] = node_box_data[1][pos[1]] * 2
-    node_box_data[2][pos[2]] = node_box_data[2][pos[2]] * 2
+	node_box_data = table.copy(DefNodeboxes)
+	node_box_data[1][pos[1]] = node_box_data[1][pos[1]] * 2
+	node_box_data[2][pos[2]] = node_box_data[2][pos[2]] * 2
 
 	tiles_data = TilesData[idx]
 	
@@ -389,14 +389,14 @@ for idx,pos in ipairs(DirCorrections) do
 	else
 		hidden = 1
 	end
-    minetest.register_node("tubelib:tube"..idx, {
-        description = "Tubelib Tube",
-        tiles = tiles_data,
-        drawtype = "nodebox",
-        node_box = {
-          type = "fixed",
-          fixed = node_box_data,
-        },
+	minetest.register_node("tubelib:tube"..idx, {
+		description = "Tubelib Tube",
+		tiles = tiles_data,
+		drawtype = "nodebox",
+		node_box = {
+		  type = "fixed",
+		  fixed = node_box_data,
+		},
 		selection_box = {
 			type = "fixed",
 			fixed = SelectBoxes[idx],
@@ -417,10 +417,12 @@ for idx,pos in ipairs(DirCorrections) do
 		after_dig_node = function(pos, oldnode, oldmetadata, digger)
 			after_tube_removed(pos, oldnode)
 		end,
-        paramtype2 = "facedir",
-        paramtype = "light",
-        sunlight_propagates = true,
-        is_ground_content = false,
+		
+		on_rotate = screwdriver.disallow,
+		paramtype2 = "facedir",
+		paramtype = "light",
+		sunlight_propagates = true,
+		is_ground_content = false,
 		groups = {choppy=2, cracky=3, stone=1, not_in_creative_inventory=hidden},
 		drop = "tubelib:tube1",
 		sounds = default.node_sound_wood_defaults(),
diff --git a/tubelib_addons1/fermenter.lua b/tubelib_addons1/fermenter.lua
index f545451..40527be 100644
--- a/tubelib_addons1/fermenter.lua
+++ b/tubelib_addons1/fermenter.lua
@@ -235,6 +235,7 @@ minetest.register_node("tubelib_addons1:fermenter", {
 		end
 	end,
 	
+	on_rotate = screwdriver.disallow,
 	on_timer = keep_running,
 	on_receive_fields = on_receive_fields,
 	allow_metadata_inventory_put = allow_metadata_inventory_put,
diff --git a/tubelib_addons1/funnel.lua b/tubelib_addons1/funnel.lua
index c2f9858..220e7bd 100644
--- a/tubelib_addons1/funnel.lua
+++ b/tubelib_addons1/funnel.lua
@@ -91,24 +91,27 @@ minetest.register_node("tubelib_addons1:funnel", {
 	end,
 	
 	after_place_node = function(pos, placer)
+		tubelib.add_node(pos, "tubelib_addons1:funnel")
 		local meta = minetest.get_meta(pos)
 		meta:set_string("formspec", formspec())
 		minetest.get_node_timer(pos):start(1)
 	end,
 
 	on_timer = scan_for_objects,
+	on_rotate = screwdriver.disallow,
 		
 	can_dig = function(pos,player)
 		if minetest.is_protected(pos, player:get_player_name()) then
 			return false
 		end
-		local meta = minetest.get_meta(pos);
+		local meta = minetest.get_meta(pos)
 		local inv = meta:get_inventory()
 		return inv:is_empty("main")
 	end,
 
 	on_dig = function(pos, node, puncher, pointed_thing)
 		minetest.node_dig(pos, node, puncher, pointed_thing)
+		tubelib.remove_node(pos)
 	end,
 
 	allow_metadata_inventory_put = allow_metadata_inventory_put,
diff --git a/tubelib_addons1/grinder.lua b/tubelib_addons1/grinder.lua
index 4c8a7a2..e04011d 100644
--- a/tubelib_addons1/grinder.lua
+++ b/tubelib_addons1/grinder.lua
@@ -203,6 +203,7 @@ minetest.register_node("tubelib_addons1:grinder", {
 		end
 	end,
 
+	on_rotate = screwdriver.disallow,
 	on_timer = keep_running,
 	on_receive_fields = on_receive_fields,
 	allow_metadata_inventory_put = allow_metadata_inventory_put,
@@ -240,6 +241,7 @@ minetest.register_node("tubelib_addons1:grinder_active", {
 		"tubelib_front.png",
 	},
 
+	on_rotate = screwdriver.disallow,
 	on_timer = keep_running,
 	on_receive_fields = on_receive_fields,
 	allow_metadata_inventory_put = allow_metadata_inventory_put,
diff --git a/tubelib_addons1/harvester.lua b/tubelib_addons1/harvester.lua
index cc9b650..a121abe 100644
--- a/tubelib_addons1/harvester.lua
+++ b/tubelib_addons1/harvester.lua
@@ -369,6 +369,7 @@ minetest.register_node("tubelib_addons1:harvester_base", {
 		end
 	end,
 
+	on_rotate = screwdriver.disallow,
 	on_receive_fields = on_receive_fields,
 	on_timer = keep_running,
 	allow_metadata_inventory_put = allow_metadata_inventory_put,
@@ -389,6 +390,7 @@ minetest.register_node("tubelib_addons1:harvester_base_active", {
 		'tubelib_addons1_harvester.png',
 	},
 
+	on_rotate = screwdriver.disallow,
 	on_receive_fields = on_receive_fields,
 	on_timer = keep_running,
 	allow_metadata_inventory_put = allow_metadata_inventory_put,
diff --git a/tubelib_addons1/pusher_fast.lua b/tubelib_addons1/pusher_fast.lua
index 1a9f8b0..9ae58a2 100644
--- a/tubelib_addons1/pusher_fast.lua
+++ b/tubelib_addons1/pusher_fast.lua
@@ -136,6 +136,7 @@ minetest.register_node("tubelib_addons1:pusher_fast", {
 	end,
 	
 	on_timer = keep_running,
+	on_rotate = screwdriver.disallow,
 
 	paramtype = "light",
 	sunlight_propagates = true,
@@ -201,6 +202,7 @@ minetest.register_node("tubelib_addons1:pusher_fast_active", {
 	end,
 	
 	on_timer = keep_running,
+	on_rotate = screwdriver.disallow,
 	
 	paramtype = "light",
 	sunlight_propagates = true,
diff --git a/tubelib_addons1/quarry.lua b/tubelib_addons1/quarry.lua
index 7b912e4..d21360c 100644
--- a/tubelib_addons1/quarry.lua
+++ b/tubelib_addons1/quarry.lua
@@ -320,6 +320,7 @@ minetest.register_node("tubelib_addons1:quarry", {
 	end,
 
 	on_receive_fields = on_receive_fields,
+	on_rotate = screwdriver.disallow,
 
 	on_dig = function(pos, node, puncher, pointed_thing)
 		if minetest.is_protected(pos, puncher:get_player_name()) then
@@ -370,6 +371,7 @@ minetest.register_node("tubelib_addons1:quarry_active", {
 	on_receive_fields = on_receive_fields,
 
 	on_timer = keep_running,
+	on_rotate = screwdriver.disallow,
 
 	allow_metadata_inventory_put = allow_metadata_inventory_put,
 	allow_metadata_inventory_take = allow_metadata_inventory_take,
diff --git a/tubelib_addons1/reformer.lua b/tubelib_addons1/reformer.lua
index 7efafde..51d4811 100644
--- a/tubelib_addons1/reformer.lua
+++ b/tubelib_addons1/reformer.lua
@@ -230,6 +230,7 @@ minetest.register_node("tubelib_addons1:reformer", {
 		end
 	end,
 	
+	on_rotate = screwdriver.disallow,
 	on_timer = keep_running,
 	on_receive_fields = on_receive_fields,
 	allow_metadata_inventory_put = allow_metadata_inventory_put,
diff --git a/tubelib_addons2/accesscontrol.lua b/tubelib_addons2/accesscontrol.lua
index 9790c7b..97fae3f 100644
--- a/tubelib_addons2/accesscontrol.lua
+++ b/tubelib_addons2/accesscontrol.lua
@@ -79,7 +79,7 @@ minetest.register_node("tubelib_addons2:accesscontrol", {
 	},
 
 	after_place_node = function(pos, placer)
-		local number = tubelib.add_node(pos, "tubelib_addons2:accesscontrol")
+		local number = tubelib.add_node(pos)
 		local meta = minetest.get_meta(pos)
 		meta:set_string("number", number)
 		local numbers = meta:get_string("numbers") or ""
diff --git a/tubelib_addons2/colorlamp.lua b/tubelib_addons2/colorlamp.lua
index ef46163..15db2d9 100644
--- a/tubelib_addons2/colorlamp.lua
+++ b/tubelib_addons2/colorlamp.lua
@@ -3,7 +3,7 @@
 	Tubelib Addons 2
 	================
 
-	Copyright (C) 2017 Joachim Stolberg
+	Copyright (C) 2017-2018 Joachim Stolberg
 
 	LGPLv2.1+
 	See LICENSE.txt for more information
@@ -23,6 +23,7 @@ local function switch_node(pos, num, player)
 		node.name = "tubelib_addons2:lamp"..num
 		minetest.swap_node(pos, node)
 		local number = meta:get_int("number")
+		number = string.format("%.04u", number)
 		meta:set_string("infotext", "Tubelib Color Lamp "..number)
 		if num ~= "" then
 			meta:set_int("color", num)
@@ -32,12 +33,10 @@ end
 
 minetest.register_node("tubelib_addons2:lamp", {
 	description = "Tubelib Color Lamp",
-	tiles = {
-		"tubelib_addons2_lamp.png^[colorize:#FFFFFF:120",
-	},
+	tiles = {"tubelib_addons2_lamp.png^[colorize:#000000:100"},
 
 	after_place_node = function(pos, placer)
-		local number = tubelib.add_node(pos, "tubelib_addons2:lamp")
+		local number = tubelib.add_node(pos)
 		local meta = minetest.get_meta(pos)
 		meta:set_int("number", number)
 		switch_node(pos, "", placer)
@@ -100,7 +99,6 @@ for idx,color in ipairs(tColors) do
 		description = "Tubelib Color Lamp",
 		tiles = {
 			"tubelib_addons2_lamp.png^[colorize:"..color..":120",
-			--"tubelib_lamp.png^[colorize:"..color,
 		},
 
 		on_receive_fields = function(pos, formname, fields, player)
@@ -119,7 +117,8 @@ for idx,color in ipairs(tColors) do
 
 		paramtype = 'light',
 		light_source = LIGHT_MAX,	
-		groups = {crumbly=0, not_in_creative_inventory=1},
+		groups = {choppy=2, cracky=1, not_in_creative_inventory=1},
 		is_ground_content = false,
+		drop = "tubelib_addons2:lamp"
 	})
 end
diff --git a/tubelib_addons2/colorlamp_ud.lua b/tubelib_addons2/colorlamp_ud.lua
new file mode 100644
index 0000000..1b6d5c6
--- /dev/null
+++ b/tubelib_addons2/colorlamp_ud.lua
@@ -0,0 +1,140 @@
+--[[
+
+	Tubelib Addons 2
+	================
+
+	Copyright (C) 2017-2018 Joachim Stolberg
+
+	LGPLv2.1+
+	See LICENSE.txt for more information
+
+	colorlamp_ud.lua which requires the mod unifieddyes:
+	
+]]--
+
+local function switch_on(pos, node, player)
+	if player == nil or not minetest.is_protected(pos, player:get_player_name()) then
+		node.name = "tubelib_addons2:lamp_on"
+		minetest.swap_node(pos, node)
+	end
+end	
+
+local function switch_off(pos, node, player)
+	if player == nil or not minetest.is_protected(pos, player:get_player_name()) then
+		node.name = "tubelib_addons2:lamp_off"
+		minetest.swap_node(pos, node)
+	end
+end	
+
+minetest.register_node("tubelib_addons2:lamp_off", {
+	description = "Tubelib Color Lamp",
+	tiles = {"tubelib_addons2_lamp.png^[colorize:#000000:100"},
+
+	after_place_node = function(pos, placer, itemstack, pointed_thing)
+		local number = tubelib.add_node(pos)
+		local meta = minetest.get_meta(pos)
+		meta:set_string("infotext", "Tubelib Color Lamp "..number)
+		unifieddyes.recolor_on_place(pos, placer, itemstack, pointed_thing)
+	end,
+
+	on_rightclick = switch_on,
+
+	after_dig_node = function(pos, oldnode, oldmetadata, digger)
+		tubelib.remove_node(pos)
+		unifieddyes.after_dig_node(pos, oldnode, oldmetadata, digger)
+	end,
+
+	on_construct = unifieddyes.on_construct,
+	
+	paramtype = "light",
+	paramtype2 = "color",
+	palette = "unifieddyes_palette_extended.png",
+	place_param2 = 241,
+	sunlight_propagates = true,
+	sounds = default.node_sound_stone_defaults(),
+	groups = {choppy=2, cracky=1, ud_param2_colorable = 1},
+	is_ground_content = false,
+})
+
+tubelib.register_node("tubelib_addons2:lamp", {}, {
+	on_recv_message = function(pos, topic, payload)
+		if topic == "on" then
+			local node = minetest.get_node(pos)
+			switch_on(pos, node, nil)
+		elseif topic == "off" then
+			local node = minetest.get_node(pos)
+			switch_off(pos, node, nil)
+		end
+	end,
+})	
+
+
+minetest.register_craft({
+	output = "tubelib_addons2:lamp 2",
+	recipe = {
+		{"wool:green",       "wool:red",           "wool:blue"},
+		{"tubelib:wlanchip", "default:coal_lump",  "tubelib:wlanchip"},
+		{"group:wood",       "",                   "group:wood"},
+	},
+})
+
+for idx=1,12 do
+	minetest.register_node("tubelib_addons2:lamp"..idx, {
+		description = "Tubelib Color Lamp "..idx,
+		tiles = {"tubelib_addons2_lamp.png"},
+		paramtype = 'light',
+		groups = {choppy=2, cracky=1, not_in_creative_inventory=1},
+		is_ground_content = false,
+		drop = "tubelib_addons2:lamp_off"
+	})
+end
+
+minetest.register_node("tubelib_addons2:lamp_on", {
+	description = "Tubelib Color Lamp",
+	tiles = {"tubelib_addons2_lamp.png"},
+
+	on_rightclick = switch_off,
+
+	paramtype = "light",
+	paramtype2 = "color",
+	palette = "unifieddyes_palette_extended.png",
+	groups = {choppy=2, cracky=1, not_in_creative_inventory=1, ud_param2_colorable = 1},
+	
+	on_construct = unifieddyes.on_construct,
+	after_place_node = unifieddyes.recolor_on_place,
+	after_dig_node = unifieddyes.after_dig_node,
+   
+	light_source = LIGHT_MAX,	
+	is_ground_content = false,
+	drop = "tubelib_addons2:lamp_off"
+})
+
+minetest.register_lbm({
+	label = "[Tubelib] Color Lamp update",
+	name = "tubelib_addons2:update",
+	nodenames = {
+		"tubelib_addons2:lamp",
+		"tubelib_addons2:lamp1", "tubelib_addons2:lamp2", "tubelib_addons2:lamp3", 
+		"tubelib_addons2:lamp4", "tubelib_addons2:lamp5", "tubelib_addons2:lamp6", 
+		"tubelib_addons2:lamp7", "tubelib_addons2:lamp8", "tubelib_addons2:lamp9", 
+		"tubelib_addons2:lamp10", "tubelib_addons2:lamp11", "tubelib_addons2:lamp12", 
+	},
+	run_at_every_load = true,
+	action = function(pos, node)
+		local color = {112, 108, 104, 100, 96, 115, 240, 255, 80, 120, 99, 20}
+		local meta = minetest.get_meta(pos)
+		local num = meta:get_int("color")
+		if node.name == "tubelib_addons2:lamp" then
+			node.param2 = color[tonumber(num)]
+			node.name = "tubelib_addons2:lamp_off"
+		else
+			node.param2 = color[tonumber(num)]
+			node.name = "tubelib_addons2:lamp_on"
+		end
+		minetest.swap_node(pos, node)
+		local number = meta:get_int("number") or 0
+		number = string.format("%.04u", number)
+		meta:set_string("infotext", "Tubelib Color Lamp "..number)
+	end
+})
+
diff --git a/tubelib_addons2/depends.txt b/tubelib_addons2/depends.txt
index bacb32b..46d6730 100644
--- a/tubelib_addons2/depends.txt
+++ b/tubelib_addons2/depends.txt
@@ -1,3 +1,4 @@
 default
 tubelib
-mesecons?
\ No newline at end of file
+mesecons?
+unifieddyes?
\ No newline at end of file
diff --git a/tubelib_addons2/doorblock.lua b/tubelib_addons2/doorblock.lua
index 801d13b..6ef60da 100644
--- a/tubelib_addons2/doorblock.lua
+++ b/tubelib_addons2/doorblock.lua
@@ -52,7 +52,7 @@ for idx,pgn in ipairs(tPgns) do
 		after_place_node = function(pos, placer)
 			local meta = minetest.get_meta(pos)
 			local node = minetest.get_node(pos)
-			local number = tubelib.add_node(pos, node.name)
+			local number = tubelib.add_node(pos)
 			tubelib.set_data(number, "facedir", node.param2)
 			meta:set_string("number", number)
 			meta:set_string("infotext", "Tubelib Door Block "..number)
diff --git a/tubelib_addons2/gateblock.lua b/tubelib_addons2/gateblock.lua
index bd169c4..6058de9 100644
--- a/tubelib_addons2/gateblock.lua
+++ b/tubelib_addons2/gateblock.lua
@@ -36,7 +36,7 @@ for idx,pgn in ipairs(tPgns) do
 		after_place_node = function(pos, placer)
 			local meta = minetest.get_meta(pos)
 			local node = minetest.get_node(pos)
-			local number = tubelib.add_node(pos, node.name)
+			local number = tubelib.add_node(pos)
 			meta:set_string("infotext", "Tubelib Gate Block "..number)
 			meta:set_string("formspec", "size[3,2]"..
 			"label[0,0;Select texture]"..
diff --git a/tubelib_addons2/init.lua b/tubelib_addons2/init.lua
index 19f6d1a..ed11b5a 100644
--- a/tubelib_addons2/init.lua
+++ b/tubelib_addons2/init.lua
@@ -14,10 +14,14 @@ dofile(minetest.get_modpath("tubelib_addons2") .. "/timer.lua")
 dofile(minetest.get_modpath("tubelib_addons2") .. "/sequencer.lua")
 dofile(minetest.get_modpath("tubelib_addons2") .. "/gateblock.lua")
 dofile(minetest.get_modpath("tubelib_addons2") .. "/doorblock.lua")
-dofile(minetest.get_modpath("tubelib_addons2") .. "/colorlamp.lua")
 dofile(minetest.get_modpath("tubelib_addons2") .. "/repeater.lua")
 dofile(minetest.get_modpath("tubelib_addons2") .. "/programmer.lua")
 dofile(minetest.get_modpath("tubelib_addons2") .. "/accesscontrol.lua")
-if mesecon then
+if minetest.get_modpath("mesecons") and mesecon then
 	dofile(minetest.get_modpath("tubelib_addons2") .. "/mesecons_converter.lua")
 end
+if minetest.get_modpath("unifieddyes") and unifieddyes then
+	dofile(minetest.get_modpath("tubelib_addons2") .. "/colorlamp_ud.lua")
+else
+	dofile(minetest.get_modpath("tubelib_addons2") .. "/colorlamp.lua")
+end
diff --git a/tubelib_addons2/mesecons_converter.lua b/tubelib_addons2/mesecons_converter.lua
index b78768e..59aa48e 100644
--- a/tubelib_addons2/mesecons_converter.lua
+++ b/tubelib_addons2/mesecons_converter.lua
@@ -52,7 +52,7 @@ minetest.register_node("tubelib_addons2:mesecons_converter", {
 
 	after_place_node = function(pos, placer)
 		local meta = minetest.get_meta(pos)
-		local own_number = tubelib.add_node(pos, "tubelib_addons2:mesecons_converter")
+		local own_number = tubelib.add_node(pos)
 		meta:set_string("own_number", own_number)
 		meta:set_string("formspec", formspec(meta))
 		meta:set_string("infotext", "Tubelib Mesecons Converter "..own_number..": not connected")
diff --git a/tubelib_addons2/repeater.lua b/tubelib_addons2/repeater.lua
index 07d5873..f970728 100644
--- a/tubelib_addons2/repeater.lua
+++ b/tubelib_addons2/repeater.lua
@@ -32,7 +32,7 @@ minetest.register_node("tubelib_addons2:repeater", {
 
 	after_place_node = function(pos, placer)
 		local meta = minetest.get_meta(pos)
-		local own_number = tubelib.add_node(pos, "tubelib_addons2:repeater")
+		local own_number = tubelib.add_node(pos)
 		meta:set_string("own_number", own_number)
 		meta:set_string("formspec", formspec(meta))
 		meta:set_string("infotext", "Tubelib Repeater "..own_number..": not connected")
diff --git a/tubelib_addons2/sequencer.lua b/tubelib_addons2/sequencer.lua
index 4b7deba..30ecc55 100644
--- a/tubelib_addons2/sequencer.lua
+++ b/tubelib_addons2/sequencer.lua
@@ -201,7 +201,7 @@ minetest.register_node("tubelib_addons2:sequencer", {
 	
 	after_place_node = function(pos, placer)
 		local meta = minetest.get_meta(pos)
-		local number = tubelib.add_node(pos, "tubelib_addons2:sequencer")
+		local number = tubelib.add_node(pos)
 		local rules = {}
 		for idx = 1,NUM_SLOTS do
 			rules[idx] = {offs = "", num = "", act = 1}
@@ -213,6 +213,7 @@ minetest.register_node("tubelib_addons2:sequencer", {
 		meta:set_int("endless", 0)
 		meta:get_int("running", STOP_STATE)
 		meta:set_string("formspec", formspec(tubelib.STOPPED, rules, 0))
+		meta:set_string("infotext", "Tubelib Sequencer "..number)
 	end,
 
 	on_receive_fields = on_receive_fields,
diff --git a/tubelib_addons2/textures/tubelib_addons2_lamp.png b/tubelib_addons2/textures/tubelib_addons2_lamp.png
index ac4aaf3..f669768 100644
Binary files a/tubelib_addons2/textures/tubelib_addons2_lamp.png and b/tubelib_addons2/textures/tubelib_addons2_lamp.png differ