... 1. Standard: accords with China standard of GB14887-20032. Appearance design: the appearance is specially designed for LED light source,and the ... more brightness,abut 3-4 times more than the source of incandescence light; longevity, more than100,000 hours; ... strength: withstands 1,440V AC 13, Dustproof: according with standard of GB14887-2003 14, Shockproof: according with standard of GB14887-2003