This is a generic XML-E3 LED tactical zoom flashlight.
Made of durable aluminum alloy.
Features a zoomable beam with various settings indicated on the barrel (e.g., X1, X250, X500, X1000).
Typically offers multiple lighting modes (e.g., high, medium, low, strobe, SOS).
Often described as waterproof and suitable for outdoor and emergency use.
Powered by rechargeable batteries, such as an 18650 cell.