FLASHLIGHT IR PORTABLE INFRARED FLASHLIGHT 5IN - Rotate the flashlight head to enlarge or reduce the light to enlarge or decrease.<br> - Plain waterproof standard O-ring seal, waterproof, can be used on rainy days.<br> - Constant current drive lowering voltage, two-mode DC-DC converter has high efficiency. Replace the battery when the light is too dark.<br> - Focusing infrared flashlight 850nm night vision, camera fill bulb, monitor light source filling the light.<br> - Widely used in outdoor activities such as mountain climbing, camping, hiking, forest exploration or used at home such as repairing or finding trifles.<br> Specification: - Item Type: Flashlight<br> - Color: as shown in the pictures<br> Product Size: approx. 13,6-15,8 cm/5,4-6,2 inch (length of retractable flashlight) Lamp head diameter: 3.5 cm/1,4 inch Weight: approx. 165 g/5,8 oz Material: aerospace aluminum alloy Lens: transparent magnifier with anti-reflective coating Bulb: 5W 850NM Infrared light range: up to 30-100 meters/98,4-328,1 feet Working time: 1,5-5,5 hours (depending on battery capacity and mode selected) Lifespan: average 10 000 hours - Operating voltage: 0,8 V-4,2 V<br> - Power supply: 3xAA or 1x18650 (without battery)<br> - Switch: end cover push-button switch<br> List of packages: - 1 x Flashlight<br> - 1 x Battery Conversion Housing<br> Note:<br> This portable flashlight is not a lighting flashlight, but an infrared flashlight. It is mainly used for filling with light a night vision instrument or infrared camera. When it comes to the exposure distance of the flashlight: how many meters an infrared emitting tube can have, it is a system problem, we cannot simply say how many meters it can be, it also affects the size of the group of lamps, circuit, camera, lens, etc.