led bulb, led lamp bulb 1.Warranty:2 years 2.High efficiency,competitive price 3.Low lumen attenuation 4.CE&ROSH ... bulb light, led bulb lamp, led light bulb, led bulbs, led lamp bulb, high power led bulb, led lamp bulbDetail Description of led bulb ... , day white4. Superior thermal management with internal copper heat conductor and external aluminum housing5. Light source: High power led 3W, 4W, 5W ...