Description: This is a super bright flashlight made from 6061T of aluminum alloy, this flashlight is sturdy and durable enough for a long time use. Super bright, blinding effect. It is waterproof, but do not put it into water long. Crenellated strike bezel for enhanced self-defense. With a lifespan of up to 100,000 hours or more, no need to consider replacing the cap for the whole life. It is suitable for biking, camping, backpacking, hunting, fishing, emergencies and home repairing. Bring with a neck rope, convenient to carry. Features: Type: CREE XML-T6 LED LED Quantity: 7/8/9/10/12 Luminous Flux: Max output 16000/20000/ 25000/30000/35000LMlumens Switch Location: Middle Waterproof: Yes 3 Modes: High / middle / strobe(long press the button) Material: Aluminum alloy case 6061, coated glass lens Power Source: 4 x 18650 3.7V Rechargeable Battery(Not included) Lifespan: 100,000 hours Light Color: White Press and hold the button for 1.5 seconds to turn on/off the light. Press 1 time: High brightness (100%), digital display shows: H Press 2 times: Mid brightness (50%), digital display shows: E Press 3 times: Low brightness (15%), digital display shows: L Digital Display Battery Power Indicator: Digital display shows "9": 90%-100% & "8" for 80%-90% Digital display shows "7": 70%-80% & "6" for 60%-70% Digital display shows "5": 50%-60% & "4" for 40%-50% Digital display shows "3": 30%-40% & "2" for 20%-30% Digital display shows "1": 10%-20% & "0" for 0-10% Operating Voltage: DC 3.7V~4.2V Power Source: 4 x 3.7V 18650 rechargeable li-ion batteries (Not Included) Product Size: 60 x 60 x 150mm NOTE: 1. Please tighten the tail cap, otherwise it might not work because of a loose battery contact 2. Please keep the tail cap and clean, If the control panel of tail cap is dirty, it may cause the battery to a bad contact, resulting in not lit. Package includes: 1 x Digital LED flashlight ( Not Included Battery )