Feature: 1. Light Pink Light Source: The light source detected by the mobile phone camera is light pink, which can detect whether the infrared flashlight is working normally or distinguish the 850 band. 2. Infrared: The infrared flashlight emits infrared light that is not visible to the naked eye, which is not a white LED flashlight for ordinary lighting, and you will not see any light with the naked eye. 3. Straight Barrel Design: The appearance of the flashlight adopts a straight barrel shape, which is comfortable to hold and can be controlled with one hand, and the operation is simple and convenient. 4. High Quality Material: The night vision flashlight is made of aluminum alloy, which is sturdy and durable, with stable performance, infrared light range: 5‑10 meters, and an average lifespan of 10,000 hours. 5. Use: Infrared light emits 850nm wavelength, it needs to be used with night vision goggles, night vision goggles, infrared cameras, NVS, camera phones, monoculars, goggles, hunting animals, adventure, and observation. Specification: Item Type: Flashlight Material: Aluminum Alloy Size: Lamp Diameter: Approx. 4.5cm/1.8in Light Tail Diameter: Approx. 2.4cm/0.9in Length: Approx. 14.8cm/5.8in Bulb: 850nm LED Infrared Light Range: Approx. 5-10m/16.4-32.8ft Lifespan: Average 10000 Hours Mode: Always Bright Mode Battery: 1 x 18650 Battery (Not Included) Gross Weight: Approx. 125g/4.4oz Description: The LED chip of this flashlight will turn red when illuminated, but the beam needs to be detected by a night vision device or a non infrared filter. Focusing infrared flashlight 850nm, night vision instrument camera fill light monitoring light source fill light In order to avoid power consumption for a long time due to unknown power supply, it is recommended to take out the battery when not in use. Package List: 1 x Flashlight Note: 1. Please allow some errors due to manual measurement.2. There is only a faint red light on the LEDs, indicating that the flashlight is turned on