diff --git a/extras/conf/udb/Includes/SRB222_linedefs.cfg b/extras/conf/udb/Includes/SRB222_linedefs.cfg
index 430645dec..324660d59 100644
--- a/extras/conf/udb/Includes/SRB222_linedefs.cfg
+++ b/extras/conf/udb/Includes/SRB222_linedefs.cfg
@@ -3371,6 +3371,23 @@ udmf
 
 	light
 	{
+		600
+		{
+			title = "Copy Light Level to Tagged Sector's Planes";
+			prefix = "(600)";
+			arg0
+			{
+				title = "Target sector tag";
+				type = 13;
+			}
+			arg1
+			{
+				title = "Affected planes";
+				type = 11;
+				enum = "floorceiling";
+			}
+		}
+
 		602
 		{
 			title = "Start Adjustable Pulsating Light";
diff --git a/src/p_setup.c b/src/p_setup.c
index c93a7ac2f..306847028 100644
--- a/src/p_setup.c
+++ b/src/p_setup.c
@@ -4035,6 +4035,12 @@ static void P_ConvertBinaryMap(void)
 				lines[i].args[4] |= TMPF_NONEXCLUSIVE;
 			lines[i].special = 541;
 			break;
+		case 600: //Floor lighting
+		case 601: //Ceiling lighting
+			lines[i].args[0] = tag;
+			lines[i].args[1] = (lines[i].special == 601) ? TMP_CEILING : TMP_FLOOR;
+			lines[i].special = 600;
+			break;
 		case 606: //Colormap
 			lines[i].args[0] = Tag_FGet(&lines[i].tags);
 			break;
diff --git a/src/p_spec.c b/src/p_spec.c
index 250aa4eef..7ec7ca38c 100644
--- a/src/p_spec.c
+++ b/src/p_spec.c
@@ -6859,16 +6859,15 @@ void P_SpawnSpecials(boolean fromnetsave)
 			// 546 is used for downwards current
 			// 547 is used for push/pull
 
-			case 600: // floor lighting independently (e.g. lava)
+			case 600: // Copy light level to tagged sector's planes
 				sec = sides[*lines[i].sidenum].sector-sectors;
-				TAG_ITER_SECTORS(tag, s)
-					sectors[s].floorlightsec = (INT32)sec;
-				break;
-
-			case 601: // ceiling lighting independently
-				sec = sides[*lines[i].sidenum].sector-sectors;
-				TAG_ITER_SECTORS(tag, s)
-					sectors[s].ceilinglightsec = (INT32)sec;
+				TAG_ITER_SECTORS(lines[i].args[0], s)
+				{
+					if (lines[i].args[1] != TMP_CEILING)
+						sectors[s].floorlightsec = (INT32)sec;
+					if (lines[i].args[1] != TMP_FLOOR)
+						sectors[s].ceilinglightsec = (INT32)sec;
+				}
 				break;
 
 			case 602: // Adjustable pulsating light