Handheld Flashlights waterproof 5 modes Energy-efficient despite the high-powered functionality light is environment-friendly and cost-efficient. Bulbs last more than 100,000 hours. 100% satisfaction and money-back guarantee. Modes: Adjustable focus range for different usage, stretching to adjust 5 Mode,high brightness; Medium brightness; low brightness; Strobe (intermitent flashing). Portable: 5.4 inches L x 1.6 inches width. Led flashlight is small enough to fit in your pocket, handbag, or car compartment, so you can take it with you wherever, whenever Rechargeablepowered by 1 x 18650 3.6v/3.7v battery(not included ) or 3X AAA battery( not included) High-power: Refun flashlight is made from air-craft Grade aluminum and can withstand extremes of temperatures, from freezing to boiling. It is Water Resistant and shock resistant