Features: Built-in Lithium Battery: 2600mAh lithium battery, which can be charged by USB cable at any for time, 84 high-brightness LED beads design, 5000lux, 5500k color temperature.<br> 50 Meters Waterproof: the underwater light can be water resistant to 164 feet, allows you to take photos and videos you want on the bottom of the sea, bringing you perfect visual effects.<br> 4 Lighting Modes: 4 lighting modes: high, middle, low and SOS models to meet your needs in different environments.<br> : stainless steel and ultra-durable PC materials, even if used in the deep sea, it will not rust.<br> Compatible: Suitable for Hero series, for Pentax SLR cameras and and other SLR cameras or other sports cameras.<br> Specifications: 4 Lighting Modes:<br> High Light Modes: about 2.5 Hours<br> Mid Light Modes: about 3.5 Hours<br> Low Light Modes: about 5 Hours<br> SOS Modes: about 9 Hours<br> Battery: Built-in 2600mAh Lithium Battery<br> LED Beads: 84-leds High-brightness LED Beads<br> Lumen: 5000lux<br> Color Temperature: 5500k<br> Waterproof: 50 Meters/164 ft<br> Material: Stainless SteelandPC<br> Size: Approx. 6.6x11.5 for cm/2.59x4.5 inch<br> Package Includes: 1 Piece 50M Waterproof Diving Light<br> 1 Piece Mount Adapter<br> 1 Piece Thumbscrew<br> note: Other demo accessories are not included.<br> Please allow 1-3mm error due to manual measurement. please make sure you do not mind before ordering.<br> Due to the difference between different monitors, the picture may not reflect the actual color of the item,please make sure you do not mind before ordering, Thank you!