Fluorescent FUL Style, U-Shape, Twin Tubes

Naturalllighting FUL Style Fluorescent Bulbs Fluorescent FUL Style, U-Shape, Twin Tube, 4 Pin Bulb. Used in special applications and fixtures - insect repellent, black light, etc. Available in 12 to 50 Watts, Warm White, Cool White, and Black Light. Average Life 5000 to 7500 Hours.