RON, i'M PLANNING ON BUILDING A NEW GROW CHAMBER 4'X 7' WITH 400 WT. MH ABOVE AS MAIN LIGHT SOURCE. I ALSO HAVE 3 150 WT.
hps lights. MY QUESTION IS CAN I PLACE THE HPS'S UNDER THE PLANTS SHINING UPWARDS FOR THE LOWER PART OF THE CANOPY.I KNOW EVERY THING MUST BE H20 TIGHT BUT OTHER THAN THAT IS THIS POSSIBLE OR WOULD IT BE A WAIST OF ELECTRIC.