the bottom one use for flowering the top ones i dont know what color spectrum they are so i dont know what to tell u about those
twitch Reviewed by twitch on . need help with lighting !!!!! i waz wondering how many of these would i need for 1 or 2 plants????here are some details T4 spiral 42 watt = 150 watt equivalence 2700 lumens 12,000 hours life Saves $130 in energy over life of bulb Lasts 8 years Energy Star rated http://i147.photobucket.com/albums/r287/marvingbn/bulb.jpg Rating: 5