【High-Performance LED】Equipped with LUMINUS SST40 LED, offering an impressive 30,000-hour lifespan and a maximum brightness of 1800 lumens 【Versatile Lighting Modes】Features five modes: Ultra-High (1800lm), High (1000lm), Medium (500lm), Low (10lm), and Strobe (700lm), with a beam distance of up to 350 meters 【Type-C Charging】Convenient USB Type-C charging port with 5V 2A input for quick and easy recharging 【Durable Construction】Built with 6061 T6 aluminum alloy body, vacuum-plated aluminum reflector, and tempered glass lens for superior durability and performance 【Tail Switch Design】Features a user-friendly tail switch with press for on/off and light press for mode switching 【Versatile Applications】Ideal for indoor and outdoor use, including writing, reading, fishing, camping, boating, hunting, exploring, and maintenance work Specifications: LED parameters: Model: LUMINUS SST40 LED life (hours): 30,000 Product brightness (lumens): extremely bright (1800lm) - high brightness (1000lm) - medium brightness (500lm) - low brightness (10lm) - flashing (700lm) Effective range (meters): 350 meters Circuit parameters: Input voltage range (V): 2.7V~4.2V Control mode: extremely bright - high brightness - medium brightness - low brightness - flashing, cycle shifting Charging parameters: 5V 2A input, Type C charging port Battery parameters: Battery: 1*21700 lithium battery (3.7V 2600mAh) Battery life: very bright (2h) - high brightness (2.5h) - medium brightness (6h) - low brightness (120h) - flash (8h) Physical parameters: Size (mm): ￠35*149 Weight (g): 127 (excluding battery) Switch mode: tail button switch Casing material: 6061 T6 aluminum alloy Reflector cup: vacuum electroplated aluminum alloy light cup Lens: tempered glass optical lens Surface treatment: three-level anodizing Waterproof grade: IPX8 Anti-drop height: 1.5 meters Notes: 1. The extremely bright gear can only be started when the voltage detected by the flashlight driver exceeds 3.5V. When it is lower than 3.5V, it will directly enter the high brightness gear). 2. When the input voltage is sufficient, the extremely bright gear will automatically jump to the high brightness gear after working for 2 minutes.