I seen on many peoples post that they will have a 250 or 400 watt HPS but it will be 3 feet away. Would I be able to run a 50 watt HPS at 4000 lumens about 4 inches away or so? Over even a 35 watt? I just need a HPS bulb that can be kinda close to the plant because of space at the time...
Looking a reflector with a "cool tube" or make one yourseelf...other than that HPS need a distace for a reason...