SPECIFICATIONS Battery: 21700 Body Material: Aluminum Alloy Brand Name: Sofirn Certification: CCC,ce,FCC,ROHS Charger: Not Applicable Color: black Flashlight Type: camping, hiking, searching, fishing, cycling, night-walking, Focal Length: Non-adjustable Function: Shock Resistant,Hard Light Hign-concerned Chemical: None Is Batteries Included: Yes Item Type: FLASHLIGHTS Light Source: LED bulbs Lighting Distance: 200-500 m Lumen: 350,4500lm Model Number: Sofirn SR15 Model of LED Beads: SFT25R Origin: Mainland China Support Dimmer: 5-8 files Switch Mode: High/Middle/Low Waterproof: Yes Wattage: 40W Zoom: No Attention: SOFIRN SR15 tail cap is fixed with glue and can't be unscrewed, so if you need to replace the battery, please unscrew the head for replacement, thank you! SOFIRN SR15 is a high-performance flashlight designed for ultimate brightness and long-distance illumination. With a powerful 4500 Lumen output, it provides a super bright beam that can reach up to 510 meters, making it ideal for outdoor adventures, camping, emergency situations, and tactical use. Its versatile design and multiple modes make it a perfect tool for any outdoor enthusiast or professional needing a high lumen, long-range flashlight. Description 1. Powerful LED Flashlight: The SOFIRN SR15 flashlight is equipped with 4 * SFT25R white LEDs, producing a bright white beam with a color temperature of 6000-6500K. Emitting up to 4500 lumens, this LED flashlight offers superior brightness, far exceeding traditional flashlights, and can easily cope with various complex environments. 2. Long-Throw Flashlight: In addition to being bright enough, the SR15 flashlight has a range of up to 510 meters, which is perfect for long-range illumination, it can provide you with a wide range of lighting to ensure safety and worry-free, whether in the dark wilderness, hiking at night, or in an emergency. 3. Multi-Function Mode: SR15 EDC flashlight includes versatile brightness and lighting modes to suit any need, including five brightness levels (from 1lm to 4500lm), a stepless dimming function, and emergency flash modes (Strobe, SOS, and Beacon), people can adjust according to actual needs. 4. Efficient Circuit Design: SOFIRN SR15 is quipped with Buck Driver circuit, the SR15 can provide stable brightness output and long service life, ensuring that it will not overheat or wear out too quickly under high-intensity use, improving the overall user experience. 5. Easy to charge and discharge: SR15 powered by a high-capacity 21700 lithium battery, this rechargeable flashlight supports rapid charging via a TYPE-C port. Not just a flashlight, the SR15 doubles as a power bank, providing an emergency charging solution for your devices. 6. Compact and User-Friendly: Measuring 130mm and weighing 128g, this portable flashlight is designed for comfort and ease of use. Its memory function retains the last brightness setting used, and the lockout mode prevents accidental activation. Specifications 1.Emitter:4 High-powered white LEDs 2.Battery Option: 121700 battery 3.Working Voltage: 3.0V-4.2V 4.USB Type-C charging 5.Material: AL6061-T6 aluminium alloy 6.Water Resistance: IP68 waterproof 7.Size: 40mm ( head diameter) *130mm(length) 8.Weight: 128g(without battery) 9.Reverse polarity protection from improper battery installation. 10.The temperature protection system activates automatically if the temperature exceeds55c, This system reduces the output current to maintain an optimal outer temperature.ensuring a better using experience.