OxyLED Diving LED Flashlight DF10, 1050 Lumen Underwater Flashlight, Bright Submarine Light for Outdoor Under Water Sports BRIGHT LED ILLUMINATION: Adopts Cree LED to emit even, super bright spotlight in 1050LM when diving, fishing, hiking, camping, trekking or emergencies 4 WORKING MODES & HAND STRAP: High/middle/low brightness levels and a strobe light, support continuous working up to 20 hours, recharged by supplied battery charger. Retractable hand strap can be set at optimal length to prevent falling down. IP68 WATERPROOF: The current highest waterproof level ensures safety use under water up to 150m. Note:Please be sured to SCREWED UP THE FLASHLIGHT CAP before diving EXTREMELY DURABLE: Aviation-grade aluminum alloy with hard anodized processing, and high hardness tempered glass design, corrosion and crash resistant GREAT HEAT DISSIPATION: Full copper heat sink quickly suck away the heat generating to ensure its long lifespan