Features: Magnetic charging adopts a safe magnetic charging to get a better seal, safe to use underwater Fill light function: Full cover design and sealing system, the light is waterproof up to 40meters. Special hot shoe port design, can be mounted on holder or 1/4 screw. for Camera cameras, other action cameras share the same mounting. Magnetic fast charging, no need to remove the back cover, 1 second to charging the light. (Fully charging in 2.5 hours). WIth 2500mAh battery for longer working time and higher brightness. <br/ Specifications: Fill light Size：about 88x34x60mm/3.46x1.34x2.36in for Camera Voltages：5V2A Charging：Magnetic Charging Waterproof: IPX8 Battery: 2500mAh battery Light Gears：1-2-3-SOS Adjustable Charging Time：2.5Hrs Package：Fill Light / Fill light and Bracket Set/ / Fill light and Bracket with Storage Bag Set Package Includes: 1Set Fill Light note: Due to the problem of lighting effects there is certain tolerances in product, please understand. Please allow 0-1cm error due to the measurement.