Product Title: 40000lm Waterproof Powerful Headlamp - USB Rechargeable Headlamp. "USB 8 Mode Headlight Torch: The LED headlight has 2 mode buttons, which can control 8 modes, which are widely used. Press the LED key mode button, you can control main light, side light, full light, SOS strobe mode. Press the COB auxiliary mode button to control the modes of strong light, warm light, red light, SOS red light and so on. USB Rechargeable Headlight: This headlight only weighs 200 grams and charges via the provided USB cable, the rechargeable USB headlight only takes about 2-3 hours to fully charge. A red warning light on the battery compartment ensures your safety when riding at night. WATERPROOF AND ADJUSTABLE HEADSTRAP: Our LED headlights are made of aluminum alloy, durable and sturdy. IPX4 waterproof rating ensures protection against splashes or sprays from any angle, and the adjustable headband ensures comfort and stability. 8 super bright LEDs glow stronger, brighter and last longer. LED lights have a lifespan of over 100,000 hours. You never need to change them. Lightweight and 90-adjustable: The 90-adjustable headlight lets you focus the light exactly where you need it. The headlight provides excellent brightness, ideal for walking, jogging, running, hiking, camping, biking, reading, caving, climbing and other outdoor activities. What you get: LED headlights, 2 18650 batteries Due to different measurement methods, please allow 2-3cm measurement error. Due to shooting tools and lighting problems, please allow color difference between the picture and the product.