• Super Bright 3000lm :Illuminate your dives with a powerful 3000lm beam, perfect for spotting fish and exploring underwater caverns. • Magnetic Switch :The magnetic switch makes it easy to turn on and off, even when wearing gloves or in wet conditions. • Rechargeable :No need to worry about replacing batteries, simply recharge the light using a USB cable and enjoy long-lasting use. • Waterproof :With a waterproof rating of 21700, this light is designed to withstand harsh underwater conditions and ensure reliable performance. Specification ※ XHP50.2 5000K or 6500K ※ Working Voltage: 3V-4.5V ※ Battery Options: One 21700 or 18650 Li-ion battery Dimension: 119mm (length) 37.5mm (head diameter) ※ Weight: 120 gram (without batteries) Premium type hard-anodized ※ Magnetic rotating ring for one-handed operation ※ Reverse polarity protection from improper battery installation ※ Low battery warning: The flashlight is rapid flashing every minute to indicate low battery if the voltage is lower than 3 volt, please insert new battery. ※Advanced Temperature Regulation: The output drops down automatically to prevent overheating when the light temperature reaches 55℃. ※ Low voltage protection: The flashlight turns off automatically if the voltage is lower than 2.6 volt. Please recharge the battery. Choice: 1.No battery charger including:1 flashlight, 2 replace Orings,1 lanyard,1 battery tube, 1 user manual 2.21700 battery kit including:1 flashlight, 2 replace Orings,1 lanyard,1 battery tube, 1 user manual, 1 21700 battery(4000mAh) ,1 USB charger