1.aluminum and lens 2,high CRI >70 3,high lumen output 4,cob LED 5,CE, RoHS, EU standard The detailed ... for driver 3.single powerful micoled plus 4.applicate in tunnel,underpasses,railways,underground parking lots etc,. About us Established in ... 2006Devoted to LED lighting reasearch, production, sales, technical support and sales service4000 ...