GE 10-Pack 10366 Fluorescent Replacement Bulb 12" 8-Watt G5 Bi Pin Base F8T5/830 For use with GE Premium and Linkable Fluorescent Light Fixtures Long Life Triphosphor Bulb 8 Watts Higher Color Rendition Bulb (F8T5/830) Plan ahead by buying a replacement bulb for your GE brand fluorescent UCF light fixtures.