Amazon.com: EMART 2 x 125W Photo CFL Full Spectrum Light Bulb, 5500k Daylight Video CFL Bulb for Softbox and Umbrella Kit, Replacement Lamp for Studio Photography, House Lighting, Portrait and Product Shooting :
Feit Electric 32W Equivalent PL CFLNI Triple Tube 4-Pin GX24Q-3 Base Compact Fluorescent CFL Light Bulb, Bright White 3500K (1-Bulb) BPPLT32E/35/HDRP - The Home Depot