whats the smallest?
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whats the smallest?
ya know balast bulb reflector all in one metalbox with a glass side :D just tryin to be clear
Hydrofarm has one thats 20"x16"x6" in a box glass and all,400 watt called Sunburst.
ballast withing the grow area is a bad idea, the bulb itself is going to need good cooling and adding that ballast makes it worse.
you can always just get a ballast and cordset and just make your own reflector of whatever size you want/need. that way, as invision said, you can have the ballast outside the growspace.