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hps are the worst bulbs for plants they are reds only with no useable uv for your plants flat out they suck forget them. ok a comparison a honda thats tuned up with some cool air intake and a exuast (hps) vs a stock farrari enzo (sunpulse metal halide) who do you think would win. its...

ha you guys are funny ok heres the sweet side life light systems are the best becuse, they are self cooled and you can have mulit spectem bulbs from sunpulse that are made for high frequncy ballast witch run alot more cheap sunpulselamps.com. you say the bend the light you are a dumb ass light...