1、Infrared Flashlight: The light source under the detection of the mobile phone camera is light pink, which can detect whether the infrared flashlight is working normally or distinguish the 850 band. 2、Constant Current Voltage Stabilization: The driver adopts constant current voltage stabilization and anti reverse connection, which solves the problem of failure caused by reversely placing the positive and negative electrodes of the battery in use. 3、Infrared: The infrared flashlight is not a white LED flashlight for general lighting. It emits infrared light that is can not be saw. You will not see any light with the eye. 4、Straight Shape: The appearance adopts straight shape, comfortable grip, one hand control, simple and convenient operation. The telescopic focusing design, the spot size can be adjusted to meet the various needs of users. 5、Widely Used: Infrared light emits 850nm wavelength, which needs to be used with night vision goggles, night vision goggles, infrared cameras, NVS, camera phones, monoculars, goggles, hunting and adventure use. Item Type: Infrared Torch Material: Aluminum Alloy Bulb: 850nm LED Infrared Light Range: Up To 30-100m / 98.4-328.1ft Weight: Approx. 160g / 5.6oz Lifespan: An Average Of 10,000 Hours Mode: 1 Mode Battery: 3 x AAA Batteries Or 1 18650 (Not Including Battery) Product Size: Lamp Holder Diameter 4cm/1.6ft, Lamp Tail Diameter 3cm/1.2ft, Contracted Length 14.6cm/5.7in, Stretched Length 16.8cm/6.6in Description: The LED Chip Of This Flashlight Turns Red When Illuminated, But The Beam Needs To Be Detected By Night Vision Goggles Or Non Infrared Filters. Focusing Infrared Flashlight 850nm Night Vision Instrument Camera Supplement Torch Monitor Light Source Supplement Light 1 x Lamp 1 x Battery Barrel