Quote Originally Posted by ridethefire
Does a 400w HPS lose effectiveness at 2ft?
every light loses some lumens depending how far away it is, 2 feet is too far with proper cooling you should get the light 1foot or less from the tops.
invision Reviewed by invision on . RideTheFire's indoor mids grow Hey everyone... Just started my second grow, first time indoors. Im about 10 days into it and I have about 27 children in a planter not all of which have 6 leaves yet. After bringing them outdoors during the day and under a 50/50 plant aquatic light at night for the first 9 days. They look healthy but seemed to need more light so I went out and bought an ott grow light bulb (middle) and two 125 watt CFLs (sides) and positioned them on a home made ballast. Tin foiled around to trap some of Rating: 5