diff --git a/mods/darkage/nodes.lua b/mods/darkage/nodes.lua
index 53918cfe..aaeba04c 100755
--- a/mods/darkage/nodes.lua
+++ b/mods/darkage/nodes.lua
@@ -222,7 +222,7 @@ minetest.register_node("darkage:lamp", {
 	description = "Lamp",
 	tiles = {"darkage_lamp.png"},
 	paramtype = "light",
-	light_source = 18,
+	light_source = default.LIGHT_MAX,
 	groups = {snappy=2,cracky=3,oddly_breakable_by_hand=3,flammable=1},
 	sounds = default.node_sound_glass_defaults(),
 })
@@ -352,7 +352,7 @@ minetest.register_node("darkage:glow_glass", {
 	drawtype = "glasslike",
 	tiles = {"darkage_glass.png"},
 	paramtype = "light",
-	light_source = 18,
+	light_source = default.LIGHT_MAX,
 	sunlight_propagates = true,
 	groups = {snappy=2,cracky=3,oddly_breakable_by_hand=3},
 	sounds = default.node_sound_glass_defaults(),
diff --git a/mods/darkage/stairs.lua b/mods/darkage/stairs.lua
index e41fe4d2..e820c770 100755
--- a/mods/darkage/stairs.lua
+++ b/mods/darkage/stairs.lua
@@ -166,7 +166,7 @@ if stairsplus then
 		description = "Medieval Glow Glass",
 		tiles = {"darkage_glass.png"},
 		paramtype = "light",
-		light_source = 18,
+		light_source = default.LIGHT_MAX,
 		groups = {snappy=2,cracky=3,oddly_breakable_by_hand=3},
 		sounds = default.node_sound_stone_defaults(),
 		sunlight_propagates = true,
diff --git a/mods/glow/glow/init.lua b/mods/glow/glow/init.lua
index fa9153e7..8e8f7372 100755
--- a/mods/glow/glow/init.lua
+++ b/mods/glow/glow/init.lua
@@ -1,12 +1,11 @@
 -- glow/init.lua
 -- mod by john and Zeg9
 
-LIGHT_MAX = 15
 
 minetest.register_node("glow:stone", {
 	description = "Glowing stone",
 	tiles = {"glow_stone.png"},
-	light_source = LIGHT_MAX,
+	light_source = default.LIGHT_MAX,
 	groups = {cracky=3},
 	sounds = default.node_sound_glass_defaults(),
 })
@@ -14,7 +13,7 @@ minetest.register_node("glow:stone", {
 minetest.register_node("glow:lamp", {
 	description = "Lamp",
 	tiles = {"glow_stone.png^glow_lamp_frame.png"},
-	light_source = LIGHT_MAX,
+	light_source = default.LIGHT_MAX,
 	groups = {cracky=3},
 	sounds = default.node_sound_glass_defaults(),
 })
diff --git a/mods/homedecor_modpack/chains/init.lua b/mods/homedecor_modpack/chains/init.lua
index 2facad04..becbb35a 100755
--- a/mods/homedecor_modpack/chains/init.lua
+++ b/mods/homedecor_modpack/chains/init.lua
@@ -70,7 +70,7 @@ minetest.register_node("chains:chain_top_brass", {
 minetest.register_node("chains:chandelier", {
 	description = "Chandelier (wrought iron)",
 	paramtype = "light",
-	light_source = LIGHT_MAX-2,
+	light_source = default.LIGHT_MAX-2,
 	walkable = false,
 	climbable = true,
 	sunlight_propagates = true,
@@ -97,7 +97,7 @@ minetest.register_node("chains:chandelier", {
 minetest.register_node("chains:chandelier_brass", {
 	description = "Chandelier (brass)",
 	paramtype = "light",
-	light_source = LIGHT_MAX-2,
+	light_source = default.LIGHT_MAX-2,
 	walkable = false,
 	climbable = true,
 	sunlight_propagates = true,
diff --git a/mods/homedecor_modpack/homedecor/climate-control.lua b/mods/homedecor_modpack/homedecor/climate-control.lua
index 09f714e6..462f4504 100755
--- a/mods/homedecor_modpack/homedecor/climate-control.lua
+++ b/mods/homedecor_modpack/homedecor/climate-control.lua
@@ -111,7 +111,7 @@ homedecor.register("ceiling_fan", {
 		}
 	},
 	groups = { snappy = 3 },
-	light_source = LIGHT_MAX-1,
+	light_source = default.LIGHT_MAX-1,
 	sounds = default.node_sound_glass_defaults(),
 })
 
diff --git a/mods/homedecor_modpack/homedecor/misc-nodes.lua b/mods/homedecor_modpack/homedecor/misc-nodes.lua
index b623cde9..6a82020a 100755
--- a/mods/homedecor_modpack/homedecor/misc-nodes.lua
+++ b/mods/homedecor_modpack/homedecor/misc-nodes.lua
@@ -195,7 +195,7 @@ homedecor.register("fishtank_lighted", {
 		"homedecor_fishtank_water_top_lighted.png",
 		"homedecor_fishtank_sides_lighted.png",
 	},
-	light_source = LIGHT_MAX-4,
+	light_source = default.LIGHT_MAX-4,
 	use_texture_alpha = true,
 	selection_box = ft_cbox,
 	collision_box = ft_cbox,
diff --git a/mods/maptools/nodes.lua b/mods/maptools/nodes.lua
index fc940ca3..e0510cb2 100755
--- a/mods/maptools/nodes.lua
+++ b/mods/maptools/nodes.lua
@@ -242,7 +242,7 @@ minetest.register_node("maptools:lightbulb", {
 	drawtype = "airlike",
 	walkable = false,
 	pointable = false,
-	light_source = 15,
+	light_source = default.LIGHT_MAX,
 	paramtype = "light",
 	sunlight_propagates = true,
 	drop = "",
diff --git a/mods/moreblocks/nodes.lua b/mods/moreblocks/nodes.lua
index 0d1999e0..58c75b74 100755
--- a/mods/moreblocks/nodes.lua
+++ b/mods/moreblocks/nodes.lua
@@ -290,7 +290,7 @@ local nodes = {
 		tiles = {"moreblocks_super_glow_glass.png", "moreblocks_super_glow_glass_detail.png"}, --MFF connected glass
 		paramtype = "light",
 		sunlight_propagates = true,
-		light_source = 15,
+		light_source = default.LIGHT_MAX,
 		groups = {snappy = 2, cracky = 3, oddly_breakable_by_hand = 3},
 		sounds = sound_glass,
 	},
@@ -300,7 +300,7 @@ local nodes = {
 		tiles = {"moreblocks_trap_super_glow_glass.png", "moreblocks_super_glow_glass_detail.png"}, --MFF connected glass
 		paramtype = "light",
 		sunlight_propagates = true,
-		light_source = 15,
+		light_source = default.LIGHT_MAX,
 		walkable = false,
 		groups = {snappy = 2, cracky = 3, oddly_breakable_by_hand = 3},
 		sounds = sound_glass,
diff --git a/mods/sea/sealamps/init.lua b/mods/sea/sealamps/init.lua
index 684738d4..c3b5af5b 100755
--- a/mods/sea/sealamps/init.lua
+++ b/mods/sea/sealamps/init.lua
@@ -14,7 +14,7 @@ minetest.register_node("sealamps:torch", {
 	paramtype2 = "wallmounted",
 	sunlight_propagates = true,
 	walkable = false,
-	light_source = LIGHT_MAX-1,
+	light_source = default.LIGHT_MAX-1,
 	selection_box = {
 		type = "wallmounted",
 		wall_top = {-0.1, 0.5-0.6, -0.1, 0.1, 0.5, 0.1},
@@ -40,7 +40,7 @@ minetest.register_node("sealamps:lantern", {
 	paramtype2 = "wallmounted",
 	sunlight_propagates = true,
 	walkable = false,
-	light_source = LIGHT_MAX-1,
+	light_source = default.LIGHT_MAX-1,
 	selection_box = {
 		type = "wallmounted",
 		wall_top = {-0.1, 0.5-0.6, -0.1, 0.1, 0.5, 0.1},
@@ -71,4 +71,4 @@ minetest.register_craft({
 	recipe = {
 		{'default:steel_ingot', 'default:bronze_ingot', 'default:glass'},
 	},
-})
\ No newline at end of file
+})
diff --git a/mods/snow/src/nodes.lua b/mods/snow/src/nodes.lua
index c8310a30..53a9c635 100755
--- a/mods/snow/src/nodes.lua
+++ b/mods/snow/src/nodes.lua
@@ -132,7 +132,7 @@ minetest.register_node("snow:star", table.copy(nodedef))
 
 -- Star (Lit Version) on Xmas Trees
 nodedef.description = nodedef.description.." Lighted"
-nodedef.light_source = LIGHT_MAX
+nodedef.light_source = default.LIGHT_MAX
 nodedef.tiles = {"snow_star_lit.png"}
 nodedef.drop = "snow:star"
 nodedef.groups.not_in_creative_inventory = 1
diff --git a/mods/throwing/fire_arrow.lua b/mods/throwing/fire_arrow.lua
index 85a44a15..424d81c4 100755
--- a/mods/throwing/fire_arrow.lua
+++ b/mods/throwing/fire_arrow.lua
@@ -105,7 +105,7 @@ minetest.register_node("throwing:light", {
 	paramtype = "light",
 	sunlight_propagates = true,
 	tiles = {"throwing_empty.png"},
-	light_source = LIGHT_MAX-4,
+	light_source = default.LIGHT_MAX-4,
 	selection_box = {
 		type = "fixed",
 		fixed = {