Cree XPGⅡ R5 super bright 3W LED 4 settings: high/low/S.0.S./off Light Output: Low 300LM and High 350M Burn Time: High:4Hrs, Low:9Hrs, SOS:20Hrs Top adjustable bracket for hand or stand Rubberized bezel Durable ABS Poly Carbonate Housing A rescue whistle on the lanyard The main body of tough ABS PC rubber TPR materials Magnetic switch with locking function Lightweight Design Powered by 3 AA battery