Features:1. Made of aluminum alloy material, the headlight is durable, wear-resistant and has long life time.2. Adopts dual T6 LED light, 150 degree wide lighting angle, brightness is up to 2400lm. The light beam is wide and far, giving the rider a wide view.3. Four modes: high light, medium light, low light, strobe. 4. With two built-in 18560 battery, the light can be charged via USB data line.5. IP65 ensures safe driving in rainy days.6. Two mounting bracket options for wide applications. Easy to install and remove.Specifications:Product Name: Bicycle HeadlightModel: LR-Y2Material: Aluminum Alloy Color: BlackLight Source: 2 * T6 LEDInput Voltage: 5 VModes: Low, Medium, High, Strobe (Hold on for about 2 seconds)Charging Mode: USB cable, 4-5 hoursRunning Time: 4-16 hoursLuminous Flux. 600-2400 LmBattery: 2 * 18650 4400mAh Built-in BatteryStandby Time: 4 hours for high lightWaterproof Level: IP65Luminous Range: 200-300 metersSize: Approx. 109 x 50mm / 4.29 x 1.97inWeight: Approx. 390 gPacking List:1 * LED Bicycle Front Light2 * Bracket1 * Data Cable1 * Manual