Feature 1、Infrared Light: The infrared flashlight is not an ordinary white LED flashlight, which can emits high power invisible 850nm 940nm infrared light and needs to be used together with night vision monocular and goggles. 2、Zoom Function: The head of the IR flashlight can be enlarged and reduced to obtain zoom light. Zoom is suitable for short distance and the adjustment field of view. 3、Waterproof and Antiskid: The flashlight adopts waterproof and antiskid design, so you do not have to worry about rainy weather and not easy to slide down, which is convenient for outdoor use. 4、Practical: The flashlight is made of aluminum alloy and has a long service life. When hunting, the flashlight can provide you with better lighting and make night hunting more comfortable. 5、Strong Applicability: The zoomable infrared flashlight is suitable for night vision goggles, NVS, NVG DIY, camera mobile phones, monocular, goggles and cameras that do not block infrared light. Item Type: IR flashlight Material: Aluminium alloy Weight: Approx. 375g/13.2oz Product Size: Head Diameter: 5.5cm/2.2in Tail Diameter: 3.5cm/1.4in Length after Extension: 22.5cm/8.9in Length after Contraction: 21cm/8.3in Power Supply Battery: 2 18650 lithium batteries(Excluded) Light Source: IR infrared light Function: Zoomable Usage: Used for night vision goggles, NVS, NVG DIY, cameras, mobile phones, monocular glasses, goggles and cameras that do not block infrared light as auxiliary fill light Package List 1 x IR Flashlight Note The naked eye can't see any light. It emits high‑power invisible 850/940nm infrared light, and the human eye can't see infrared light. It is recommended to use night vision monocular and goggles together. (There is only a small and weak red light on the LED, indicating that your flashlight is on)