1. Long and high light output: Super bright 1200 lumens, 100 hours run time and 165 metre beam range, CREE LED with a lifespan of 50,000 hours. 2. Robust and durable: IP68 waterproof in a 2 metre underwater test, compact aluminium alloy housing, 1 metre drop test 3. 6 light settings: Turbo high brightness, medium low, strobe SOS, one click to turn on and off, double click changes light levels, 3 times half-click and hold active strobe-SOS; suitable for outdoor, camping, hiking, emergency use, jogging and running, etc. 4. 18650 battery with USB charging function: the Nicron battery can be charged directly from a socket or power supply which has a USB port. With charging indicator light, monitoring of the charging status. Easy operation, charger not included. 5. Compact size: with only 140g light weight and 113mm length