... .1. Light source, CFL.2. Power, 7w, 9w, 11w.3. Color and color temperature, 2700-3300k warm white; 4500 ... cold white.4. Voltage, 110v, 220/230v AC.5. Lamp base, GX53.6. Size, D 75 x24.3 mm. ... 7. Lamp holder, GX53 lamp holder, surface mounted type, recessed type.8. Life ... span, 7,000 hours. GX53 CFL, 7w 9w 11w, U tube ...