... airproof bulb lamp design.3.Tempered glass cover.4.Optional colour:White,Warm white,Cool white,Red,Green,Blue,Yellow,RGB LED.5 ... available from 2700-7000K;9. Single powerful LED as the light source; imported high bright semiconductor chips;10.Ceramic heat sink ensures ... Long lifespan , low cost of maintenance.6,Energy saving and high luminous intensity, energy consumption can be 30% of traditional bulbs ...