LED Lamp with E27 5W LED Bulb 1.Epistar/Edison/Cree/SMD 5630 2.5W E27 Base,CE,FCC, ... E27 5W LED Bulb Features: a) Top quality light source, the attenuation of the LED is less than 5% by 5 ... ,000hrs, aging test under temperature 50 degree Celsius, and high luminous efficiency of every single LED ... for traditional bulbs. k) 50000hours lifespan (LED), 10 times more than traditional bulbs.l) ...