diff --git a/mods/mcl_core/nodes.lua b/mods/mcl_core/nodes.lua
index c1bd3d9b76..f8736c68d0 100644
--- a/mods/mcl_core/nodes.lua
+++ b/mods/mcl_core/nodes.lua
@@ -100,7 +100,7 @@ minetest.register_node("mcl_core:stone_with_redstone_lit", {
 	description = "Lit Redstone Ore",
 	tiles = {"default_stone.png^default_mineral_redstone.png"},
 	paramtype = "light",
-	light_source = 8,
+	light_source = 9,
 	is_ground_content = true,
 	stack_max = 64,
 	groups = {cracky=2, not_in_creative_inventory=1},
@@ -451,6 +451,7 @@ minetest.register_node("mcl_core:sea_lantern", {
 	paramtype2 = "facedir",
 	is_ground_content = false,
 	stack_max = 64,
+	-- Real light level: 15 (but Minetest caps at 14)
 	light_source = 14,
 	drop = {
 		max_items = 1,
@@ -1235,6 +1236,7 @@ minetest.register_node("mcl_core:lava_flowing", {
 	},
 	paramtype = "light",
 	paramtype2 = "flowingliquid",
+	-- Real light level: 15 (but Minetest caps at 14)
 	light_source = 14,
 	walkable = false,
 	pointable = false,
@@ -1272,6 +1274,7 @@ minetest.register_node("mcl_core:lava_source", {
 		}
 	},
 	paramtype = "light",
+	-- Real light level: 15 (but Minetest caps at 14)
 	light_source = 14,
 	walkable = false,
 	pointable = false,
@@ -1446,7 +1449,8 @@ minetest.register_node("mcl_core:glowstone", {
 			{items = {'mcl_core:glowdust 2'}},
 		}
 	},
-	light_source = 12,
+	-- Real light level: 15 (but Minetest caps at 14)
+	light_source = 14,
 	sounds = mcl_core.node_sound_stone_defaults(),
 })
 
diff --git a/mods/mcl_farming/pumpkin.lua b/mods/mcl_farming/pumpkin.lua
index eaf1e33332..0af1280e64 100644
--- a/mods/mcl_farming/pumpkin.lua
+++ b/mods/mcl_farming/pumpkin.lua
@@ -270,6 +270,7 @@ minetest.register_node("mcl_farming:pumpkin_face_light", {
 	description = "Jack o'Lantern",
 	stack_max = 64,
 	paramtype2 = "facedir",
+	-- Real light level: 15 (Minetest caps at 14)
 	light_source = 14,
 	tiles = {"farming_pumpkin_top.png", "farming_pumpkin_top.png", "farming_pumpkin_side.png", "farming_pumpkin_side.png", "farming_pumpkin_side.png", "farming_pumpkin_face_light.png"},
 	groups = {choppy=2, oddly_breakable_by_hand=2, building_block=1},
diff --git a/mods/mcl_fire/init.lua b/mods/mcl_fire/init.lua
index f648113dec..c3cfde3324 100644
--- a/mods/mcl_fire/init.lua
+++ b/mods/mcl_fire/init.lua
@@ -7,6 +7,7 @@ minetest.register_node("mcl_fire:basic_flame", {
 		animation={type="vertical_frames", aspect_w=32, aspect_h=32, length=1},
 	}},
 	inventory_image = "fire_basic_flame.png",
+	-- Real light level: 15 (but Minetest caps at 14)
 	light_source = 14,
 	groups = {igniter=2,dig_immediate=3,dig_by_water=1,not_in_creative_inventory=1},
 	drop = '',
diff --git a/mods/mcl_furnaces/init.lua b/mods/mcl_furnaces/init.lua
index 5dbc43850f..d0824df9f0 100644
--- a/mods/mcl_furnaces/init.lua
+++ b/mods/mcl_furnaces/init.lua
@@ -85,7 +85,7 @@ minetest.register_node("mcl_furnaces:furnace_active", {
 		"default_furnace_side.png", "default_furnace_side.png", "default_furnace_front_active.png"},
 	paramtype2 = "facedir",
 	is_ground_content = false,
-	light_source = 12,
+	light_source = 13,
 	drop = "mcl_furnaces:furnace",
 	groups = {cracky=2, not_in_creative_inventory=1},
 	sounds = mcl_core.node_sound_stone_defaults(),
diff --git a/mods/redstone/mesecons_lightstone/init.lua b/mods/redstone/mesecons_lightstone/init.lua
index 74bfd3e54d..49a053adbc 100644
--- a/mods/redstone/mesecons_lightstone/init.lua
+++ b/mods/redstone/mesecons_lightstone/init.lua
@@ -18,6 +18,7 @@ minetest.register_node("mesecons_lightstone:lightstone_on", {
 	groups = {cracky=2,not_in_creative_inventory=1, mesecon = 2},
 	drop = "node mesecons_lightstone:lightstone_off",
 	is_ground_content = false,
+	-- Real light level: 15 (Minetest caps at 14)
 	light_source = 14,
 	sounds = mcl_core.node_sound_stone_defaults(),
 	mesecons = {effector = {
diff --git a/mods/redstone/mesecons_torch/init.lua b/mods/redstone/mesecons_torch/init.lua
index 84c12f8e9c..8c901d760f 100644
--- a/mods/redstone/mesecons_torch/init.lua
+++ b/mods/redstone/mesecons_torch/init.lua
@@ -79,7 +79,7 @@ minetest.register_node("mesecons_torch:mesecon_torch_on", {
 	is_ground_content = false,
 	selection_box = torch_selectionbox,
 	groups = {dig_immediate=3, dig_by_water=1},
-	light_source = 6,
+	light_source = 7,
 	description="Redstone Torch",
 	mesecons = {receptor = {
 		state = mesecon.state.on,
diff --git a/mods/torches/init.lua b/mods/torches/init.lua
index e180e81a7c..20ce71b92f 100644
--- a/mods/torches/init.lua
+++ b/mods/torches/init.lua
@@ -18,7 +18,7 @@ minetest.register_node("torches:torch", {
 	sunlight_propagates = true,
 	walkable = false,
 	liquids_pointable = false,
-	light_source = 13,
+	light_source = 14,
 	groups = {choppy=2, dig_immediate=3, attached_node=1, torch=1, dig_by_water=1, deco_block=1},
 	drop = "torches:torch",
 	selection_box = {
@@ -77,7 +77,7 @@ minetest.register_node("torches:torch_wall", {
 	paramtype2 = "wallmounted",
 	sunlight_propagates = true,
 	walkable = false,
-	light_source = 13,
+	light_source = 14,
 	groups = {choppy=2, dig_immediate=3, not_in_creative_inventory=1, attached_node=1, torch=1, dig_by_water=1},
 	drop = "torches:torch",
 	selection_box = {