Power Bank Function: . Input Port: Use the USB cable to charge your flashlight when the battery is low. An indicator light lets you know when the battery is fully charged. Super bright and 5 modes: high/low/strobe, telescopic zoom, powerful flashlight using XHP50 LED bulb, maximum output of 10,000 lumens, the longest lighting distance can reach 200m. Flashlight features: hidden micro USB input, low battery reminder and charging indicator. Micro USB is suitable for cars, computers, power banks, USB charging sockets and can be used as a power bank for other devices. electronic devices. Daily Waterproof: Made of aircraft-grade aluminum alloy, it is shockproof, wear-resistant, and waterproof. It can be used rainy days, but can not be put into water. Suitable for dog walking, camping, fishing, hunting, mountaineering and outdoor activities.