We are offering dimming e27 led global bulb. operation parameters:1. Input ac 110-220 v 2. Led qty: 5 pcs3. Bulb power: 6-7w4. Intensity: 400500lm (led color temp.: 3000k)500600lm (led color temp.: 4000k)600800lm (led color temp.: 5500k6500k)5. Led brand: cree (alternative: chinese led, rebel led)6. Color temp.: warm white (alternative: pure white, cool white ). special features: inset a high efficient, dimmable constant current led driver. use triac to operate its unrated dimming level from 0% to 100%.