850nm optical parameters: 3500-4000mw Electrical parameters: 2.8A current 2.7-3.2v voltage 940nm optical parameters: 600-800mw Electrical parameters: 2.8A current 2.7-3.0v voltage Note: The IR infrared flashlight is not a regular white LED flashlight (there is only a faint red light on the LED, indicating that the flashlight is turned on) Uses: Infrared flashlights emit infrared light at 850nm or 940nm wavelength, suitable for night vision goggles, NVS, NVG DIY, cameras, mobile phones, monoculars, goggles and cameras that do not block infrared light. 850NM eyes can not see the light, like burning incense, 940nm eyes see the light is very weak. Light is the role of supplementing light when night vision goggles or non-infrared filter cameras do not have enough light for night photography 850nm infrared flashlight is best matched to 850nm night vision equipment 940nm IR Torch is the same. Helps illuminate a wider and farther range, giving you a clear view at night! Lens: An optically toughened optical convex lens that can be tuned to better focus on condensed condensing or backflow to flood effect, resulting in long-range illumination with a focused beam up to 850nm/940nm. Infrared complement 7W VCSEL 850nm/940nm Zoom Infrared Flashlight with Mute Adjustable Power 810nm IR Light Model Number IR-850 810 940nm Light Source VCSEL 850/940/810 Theoretical Brightness 5800MW Power 5-7W Material Aluminum alloy Size 5.28in-5.94in x 1in x 1.18in Weight 130g Runtime 5-10h Distance 100-600m