1. Material: aluminum alloy 2. Battery capacity: 2000mAh 3. Light source power: 5W 4. Voltage: 3.7V 5. Battery life: about 5-50 hours 6. Charging: TYPE-C fast charging + solar energy 7. Lamp bead: LED+COB+SMD 8. Weight: about 55 grams 9. Waterproof: life waterproof 10. Gear position: 9 light colors can be adjusted 11. Convenient bottle opener, durable and not deformed 12. Strong magnetic adsorption, can be arbitrarily adsorbed on the surface of iron products 13. Stainless steel memory lock buckle, high elasticity and more durable, can be used on backpacks, key chains, clothes buttons and lanyards 14. High-power long-range LED wick + large floodlight COB wick, suitable for various complex environments 15. Polycrystalline silicon solar panel, high conversion rate, high energy efficiency, high efficiency