Spiral Energy Saving Light Bulb SPECIFICATIONS Wattage: 20w Optional Wattage: 5w, 7w, 9w, 11w, 13w, 15w, 20w, 23w, 26w Luminous Flux: 715lm Light Efficiency: 55lm/w Colour Temperature: 6400K, 2700K, 4000K, 8000K Colour Rendering: 80 Lifespan: 5000 hours Voltage: 110 to 130V or..