Emits infrared light with 850nm wavelength, Suitable to use with a night vision scope, , NVG DIY, camera phones, monocular, goggles and camera which doesn't block infra red light Night Hunting : Spot light to 150-200 yards, Flood light to 100-150yards, Enjoy your coyotes Pig Varmint Deer To use this infrared illuminator, Need professional equipment cooperation.you must use night vision equipment such as night vision single glasses, infrared cameras, DIY night vision and infrared support. is not a normal flashlight, Not suitable for general lighting.The emits infrared light at 850nm, which is to the eye. LED:IR 850nm Dimension: Bezel diameter 45mm, body diameter 25mm, Overall length 147.5mm Material: Aluminum alloy Lens: 38mm Aspherical Lens Waterproof: Splash proof only Batteries Input voltage: 3.7-4.2V Operation Temperature: -25 degrees Celsius up to 50 degrees Celsius Color: Black Package Contents: 1*Flashlight() Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.