I'd like to know where people get there info. A HPS security light is fine if you're looking for red spectrum. The light sparks up, then its working. You said you wanted a ballast not a PLUG. People tell you you can't use just a bulb without a ballast and that is correct, its not an incandesant bulb, but the security light Is set up to work properly. My only problem with those kind of lights is the reflector, as it focuses the light into a sharp BEAM Instead of diffusing it. Taking the unit apart and using it without the reflector will disperse the light and making a sheetmetal reflector that you paint flat white is the cheap way out. Those security lights are usually only 150 watts, not much to be growing with. I always found them for around $5 at tag sales and flea markets or got them for free at building sites where they are remodeling old buildings. YOU DO NEED COMMON SENSE IF YOU'RE REWORKING ELECTRICAL ITEMS, though. If you're just looking for convenient plug in lights THEN you spend the money for the Grow Store stuff. Just my opinion guys, don't get your panties in a bunch. LOL