Vktech&reg; UF-T20 OSRAM Cree Infrared IR 850nm Night Vision Zoom Flashlight Material: Aircraft aluminum alloy LED:Osram IR 850nm Lens: 38mm Aspherical Lens Dimension: Bezel diameter 45mm, body diameter 25mm, Overall length 147.5mm Infrared light night vision torch suitable for night vision devices using an 850nm wavelength , high power LED torch with adjustable focus especially designed for hunting