400W XM 20,000K Color Temperature, without a 20,000K price!
* Excellent with or without Actinic supplementation.
* XM 20,000K bulbs produce a nice white/blue color after about 100 hours of burn in.
* The color and growth out of these is amazing!
* Operate on a probe start ballast, ANSI M57.
* Standard Mogul base.
175W XM 20,000K Color Temperature, without a 20,000K price!
* Excellent with or without Actinic supplementation.
* XM 20,000K bulbs produce a nice white/blue color after about 100 hours of burn in.
* The color and growth out of these is amazing!
* Operate on a probe start ballast, ANSI M57.
* Standard Mogul base.
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