Large Battery and USB Interface: The flashlight has a built-in 2200mAh battery and a USB interface, allowing for easy charging with various power sources such as car USB ports, computers, power banks, and wall sockets. The battery level indicator ensures that you are aware of the remaining battery life, and the additional USB interface can be used to power your phone in emergencies.Wide Range of Applications: The flashlight is versatile and practical, making it suitable for various activities such as night riding, fishing, maintenance, emergencies, rescue, hiking, camping, and climbing. Its high brightness and adjustable focus make it ideal for outdoor activities, while its compact size and waterproof design make it convenient for indoor use as well.Zoomable and High Brightness: The flashlight features an adjustable focus and a high-brightness P50 LED, providing up to 1500lm of output. This allows for easy illumination of any area that needs to be lit up. Whether you need to light up a large area or focus on a specific spot, this flashlight can easily adjust to your needs.Waterproof and Compact: The flashlight has an IPX5 waterproof rating, making it safe to use even in rainy conditions. Its compact size of about 16.8x3.5cm/6.61x1.38inch and convenient carrying strap make it easy to carry around. The comfortable grip ensures a secure hold, even in wet conditions.5 Mode: The flashlight offers five different lighting modes, including strong light, medium light, weak light, strobe, and SOS. This allows for versatile lighting options to meet various needs. Whether you need a bright light for outdoor activities or a dimmer light for indoor use, this flashlight has you covered. The strobe and SOS modes are particularly useful in emergency situations, providing a flashing for help.