Product Details. The flashlight features a powerful 20-watt light with a power of 1600 lumens, and the light range reaches 300 and 100 meters in diving mode. It has three levels: strong, medium and weak with emergency flash. Tested with strict testing standards to be useful to users. Designed with high-quality materials and is indestructible to different temperatures. The battery capacity is 4500 mAh and works for two hours, and the charging time is 2 to 3 hours. It can be charged through the USB charging base. The flashlight is IP68 waterproof.