Lightdow Waterproof Underwater Diving LED Video Light for gopro Waterproof up to 30m / 98ft; Size: 75.5x41x61.5mm / 2.9x1.6x2.4inch Integrated GoPro mounting system Battery capacity: 900mAh(Same battery as LD4000 LD6000 use) Running time: High light (1.2 hours); Low light (6 hours); SOS (7 hours) Compatible with Lightdow LD4000 LD6000 LD 4K GoPro hero 1/2/3/3+/4/5 ,Xiaoyi, SJCAM SJ4000 SJ6000 Luminous flux: 300 LM Charging interface: USB output Size:75.5mm*41mm*61.5mm 3 x LED lights: 3w-300LM Battery: Li type, 3.7v 1200mah Working mode: High Light-80 minutes Power Saving-6 hours SOS-7 hours Charging Voltage: 4.2v Nominal Voltage: 3.7v Charge Current: Standard Charging @ 0.5c / Rapid Charging @ 1c Max Charging Current: 1c Standard Charging Method: 0.5c Constant Current Charge to 4.2v, then 4.2v Constant Voltage Charge until charge current decline <0.05c Charging Time: Standard Charging@ 5 hours / Rapid Charging @ 2 hours Brand No Brand SKU 100626371_NP-1021068627