Specification: Mode: On/Off Flashlight shell color: black Housing material: Durable plane grade aluminum Luminous color: White light, Red Light, Green Light, 850NM Infrared night, 940NM Infrared evening Wavelength: green light: 525-530nm; purple light: 620-630nm Switch: tail button change Lighting distance: 200-500 meters above led life: greater than 100000 hours Battery: Used for 2 * 18650 batteries Waterproof: (can be used on wet days), yet no longer submersible, not submerged N: about 239g Size :223mm(L)x 25mm(D)x 48mm(head) Package A: 1* flashlight Package B: 1*Flashlight 2*18650 battery 1*USB charger Package C: 1*Flashlight 2*18650 battery 1*Pressure switch 1*USB charger 1*Clip Pay consideration to purchase infrared flashlight, no longer normal lighting fixtures flashlight, so the use of light influence with vision can not see the light. Light assets can solely be examined with devices or particular instruments. Different evening vision equipment functionality is different, infrared night vision digicam shooting impact also is different.