Description:Equipped with high brightness LED chip and high power, the flashlight allows for strong light for long distance and wide lighting range. The in-line USB charging is fully compatible with notebook/mobile power/car charger, which is convenient and practical. Made of aluminum foil, it is durable and long-lasting. The length of this product is 9.5cm, and the width of 1.8cm.To is suitable for hiking, camping, traveling, climbing and other outdoor activities. Item Name: FlashlightMaterial: Aluminum FoilInput Voltage: DC30-4.2Charging Current: 500MAPorting Method: MicroUSB Port Charging Time: 3 HoursBattery: 1 x 500mAh 18650 Battery (Included)Battery Surface Temperature: lt; 50 Degree CelsiusUsage Time: Strong Light: 3H, Medium Bright: 5H, Low Illumination: 20H Light Frame: First Gear: 400lm, Dual Position: 240lm, Third Gear: 140lmProduct Range: 200 Meters Under Strong LightInstructions: click the switch to switch to normal mode, double click the switch to enter special mode (flash mode)Features: USB Rechargeable, Long Light Range, WaterproofSize Details:9.5cm x 1.8cm/3.74" x 0.71" (Approx)Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Included:1 x Flashlight