High-performance diving flashlight: The Wurkkos DL46 diving flashlight features six XHP50B LED chips (3V), delivering a maximum illumination of 20,000 lumens and an ultra-long beam range of up to 608 meters. The flashlight adopts a hidden internal design for the USB-C charging port and supports emergency power supply (reverse charging) using a C-C cable, allowing for convenient charging and use of the device as a backup power source during outdoor activities. Rechargeable diving flashlight with large capacity and power level indicator: The Wurkkos DL46 diving flashlight features a built-in lithium battery (model 46950) with a total capacity of 30,000 mAh (3.7V, 31.9Ah). The clear power level indicator also allows you to check the remaining battery charge at a glance, providing long continuous runtime for stable and reliable performance during underwater diving. Professional diving flashlight resistant to corrosion and high temperatures: Each DL46 diving flashlight undergoes rigorous underwater pressure testing (at a depth of 100 meters) before leaving the factory. The entire flashlight body is made of high-quality aluminum alloy, featuring superior resistance to corrosion from seawater and damage from use. The copper base also helps to quickly dissipate heat generated by the LED chips, effectively preventing overheating during prolonged use. Maintenance tips to ensure a long service life: After each dive, please rinse the flashlight thoroughly with fresh water, paying special attention to the magnetic rotary switch area. Ensure the flashlight is completely dry before storing it to avoid corrosion from salt deposits in seawater. Magnetic rotary switch for easy one-handed operation: This underwater flashlight is designed with a magnetic rotary control ring that allows for easy one-handed operation, whether on land or underwater. It features three adjustable brightness levels for quick and seamless switching, ensuring immediate access to the appropriate lighting level even in unexpected emergencies.