Okay so there is a lot of miss information going around,
Alot of people believe that Reptile UVB CFL's do not work.
I have tested 23watt lucky herp 10.0, 26watt lucky herp 15.0, and 65 watt zoomed mega compact reptile UVB CFL's, all of them work.
The problem is with the lower wattage reptile UV CFL'S like the 13 watt bulbs these are horrible.
If you use a 23 watt or 26 watt reptile UVB CFL you will need too keep the bulb very close to the plants, I would keep my bulbs around 2-3 inches away from my buds.
The 65 watt reptile UV CFL can emit usable UVB up to 40 inches away from the bulbs surface so this bulb can be put further away from the plants.
The truth About Reptile UVB CFL's and small indoor grow spaces
The truth About Reptile UVB CFL's and small indoor grow spaces
am I less holy because I smoke a blunt and drink a beer? - 2pac