Feature:1. LIGHT SOURCE: Infrared flashlight in the light pink light source under the cell phone camera detection, can detect whether the infrared flashlight is working properly or difference 850 band.2. INFRARED FLASHLIGHT: IR flashlight is not a white LED flashlight for general lighting, emitting infrared light. You won't see any light with your bare eyes. Only a faint red light on the LED indicates that the flashlight is on.3. EASY TO OPERATE: 850nm night view flashlight is straight barrel shape, comfortable grip, one handed control, simple and convenient operation. Infrared light emission 850nm wavelength.4. NEED TO USE WITH: Night view flashlight needs to be used with starlight viewer goggles, infrared cameras, camera phones, monoculars, goggles, hunting animals, adventure, observation.5. LIGHTWEIGHT AND PORTABLE: Infrared flashlight is lightweight and portable. Suitable for outdoor activities, such as photography, which could satisfy your different needs.How to Use:1. Install 1 section 18650 battery (battery not included) 2. Control the light switch through the switch on the productSpecification:Item Type: Infrared FlashlightMaterial: Aluminium AlloyLamp: T30 InfraredInfrared Light Range: Approx. 5-10m / 16.4x32.8ftLife Span: 10000 Hours on AverageMode: Constant Light ModeBattery: 1 x 18650 Battery (Not Included)Product Size: Lamp Head Diameter: Approx. 4.5cm/1.8inLength: Approx. 14.5cm/5.7inDescription: This Flashlight LED Chip, when the Light Will Turn Red, but the Beam Needs to Be Detected by Starlight Viewer or Non infrared Filters. Focusing Infrared Flashlight 850nm, Starlight Viewer Device Camera Fill Light Monitoring Light Source Fill Light, in Order to Avoid Long Time Power Consumption Due to Not Knowi