135w (85w actual) UFO (Works well in 4-foot tall tent, but you can do better for the money.)
180w (120w actual) Not recommended.
v2 UV (full spectrum, flower)
v2 HO (veg)
Apollo 4-spot with custom spectrum. Not recommended.
Household LED lightbulbs
Phillips (Recommended. Most efficient.).
A19 8 & 8.5w (60w equiv) with diffusion cap removed (must power through GFI outlet to reduce risk of shock with cap removed).
A19 14 & 14.5w (100w equiv) with diffusion cap removed (must power through GFI outlet to reduce risk of shock with cap removed).
GE (Recommended, best value. Inexpensive but good efficiency.).
BrightStick 10w (60w equiv) with diffusion cap removed (must power through GFI outlet to reduce risk of shock with cap removed).
BrightStick 16w (100w equiv) with diffusion cap removed (must power through GFI outlet to reduce risk of shock with cap removed).
Cree
A19 9.5w (60w equiv) lightbulbs (not the cheap, plastic 4Flow model. Must be glass globe, with cooling fins around base.). (Not recommended. Phillips and GE are better choices.).