T5 28W Triphosphor Fluorescent Lamp Using Full Auto exhausting machine, Stable quanlity and Stable quantity per day! T5 Triphosphor Fluorescent Lamp Watts: 8W,14W,21W,28W,35WLife: 8000hrs/10000hrsBase:G5 Advantage:1) Long life , No Flash, Stable Quanlity2)Saving Energy, Using Triphosphor is more lighter than Common Halogen Fluorescent lamp