Product Description: 30m waterproof (30m water pressure test) 300 lumen with 2.8w power and Adjustable 3 mode Hi-Low-SOS1000mah battery in hi mode work time is 90min, in low mode work time is 4 hours, and in SOS mode is 6 hours Can be used together with head band or chest bandWhether you are underwater, on land or in a poorly-lit room, the light will always brighten up your footage.The integrated mounts will let you attach it between your gopro and and system-conform pole or mount.Specifications:Brand: OzoneColor: BlackMaterial: PCOther Features Lumen: 50-300lm Power: 2.8W LED Light Color: White Color temperature: 5500-6000K Strong light mode Working time: 2H Low Light Working time: 5H SOS Working time: 6HDimensions & WeightDimensions 2.91 in x 1.3 in x 2.36 in (7.4 cm x 3.3 cm x 6 cm)Weight 4.37 oz (124 g)Packing Includes1x LED Fill Light1x USB Power Charging Cable (81cm)1x Buckle Basic Mount1x Long Screw1x Plastic Wrench