Product model: XF3 built-in lithium battery small steel gun flashlight Irradiation distance: 100-300 meters Charge and discharge protection: built-in overcharge and overdischarge IC, prolong battery life Battery indicator: LED light is green when the battery is full, red when the battery is weak Charging indication: LED is red when charging, green when fully charged Product specifications: total length 118mm, head diameter 61mm, tail diameter 50mm Dimming mode: strong light, weak light, flash, long press for two seconds to shut down Zoom function: none Working voltage: 3.7V Body color: black Luminous color: white light Lamp bead color temperature: 7500K Body material: aluminum alloy Surface treatment: wear-resistant anodized Switch type: lamp head push switch Waterproof grade: IPX5 (anti-rain, anti-splash water) Power supply mode: built-in 4 batteries (single 1200mAh*4)