It's incandescent, so it'll probably burn your plants. You're much better off with a compact fluorescent bulb, or several of them, or some form of HID lighting.

A short summary of efficiency:
Incandescent lights: 10% light, 90% heat
Fluorescent lights: 40% light, 60% heat
HID lights: 50% light, 50% heat.

These are only approximations, and vary based on the light. Also, the percentage of each light's spectrum that is usable by plants varies depending on the type of light.
khronik Reviewed by khronik on . Anyone ever try these bulbs? Hey, I am starting to get pretty good results with the bulb pictured below. It is a Sylvania Spot Gro. I was wondering if anyone has ever used these bulbs and what the end result were in using them. I just got it today and so far the pants seem to be responding well to them. But I didn't know if in the long run if it would mess up my plants. Thanks Rating: 5