Well, Mandala's catalog recommends 400 watts per square meter for Kalichakra. That works out to about 37 watts per square foot, which is pretty close to what 5' x 5' would give you. If you want really huge plants, the limiting factor often seems to be soil quantity rather than light. Do you have any 10-gallon planters? Trash cans maybe?
khronik Reviewed by khronik on . Who likes numbers? Alright I've been researching, brain storming, tokin', and drinkin', trying to figure out how to put my lighting system to it's optimum use. I'm working with a 1,000w HPS system. Thats with a MH conversion bulb, and eye hortilux HPS bulb I've figured the numbers with 3 possible garden sizes 4x4, 4x5, 5x5. I'll start with the brightest. 4'x4' area=16 square feet or 62watts/ square foot HPS=9,062 Lumens/ square foot MH =6,562 Lumens/ square foot 4'x5' area=20 square feet or 50watts/ Rating: 5