Feature 1Constant current voltage stabilized drive, support anti reverse connection, which solves the problem of reversed battery polarity during use. 2You cannot see the infrared rays emitted by the infrared flashlight (there is only a faint red light on the LED, indicating that the flashlight is turned on). 3With telescopic focusing design, the spot size can be adjusted according to work needs to meet various needs of users. It is suitable for hunting, adventure, observation and photography, night vision lights, etc. 4Infrared light emits wavelength, which needs to be used with night vision goggles, NVS, camera phones, monoculars, and goggles. 5Straight appearance, comfortable grip, one hand control, convenient operation, one button operation at the tail, physical reverse switch, press to turn on or off the light source, search for lighting more flexible and comfortable. Item Type: IR Flashlight Material: Aluminum Alloy Purpose: Home Lighting Size: Approx. 12.3 x 2.9cm / 4.8 x 1.1in Applicable Battery: One 18650 Lithium Battery/3 AAA Battery/One 21700 Lithium Battery (Not Included) Gear Position: 1 Gear Waterproof: IPX54 Power: 5w Weight: Approx. 107g / 3.8oz Package List 1 x Flashlight(Battery Not Included) 1 x Battery Tube Note Shipped without batteries.