View Full Version : light distance

05-07-2008, 02:02 PM
i have a 250 w mh econo wing light with a 250w mh hortilux blue bulb in a 3x3 room.......and i have a 600w hps light in a 4x4 room.....how far should i keep the lights away from the tops of the plants in both rooms?

05-08-2008, 05:54 PM
i have a lighting chart that i can't seem to cut and paste but the optimal distance for the 250w is 5-16", for the 600w its 8-29"

06-16-2008, 03:56 PM
start at 8 inches if you see burn within the first day raise it five inches at a time to find the appropriate hieght for your situtation.