Features:

Brand new and high quality.
Power Supply: 18650 battery 
Underwater: 45M
LED Quantity: 20 Pcs (0.5w each)
Brightness: 1000LM
Light Mode: High, Low, SOS
High Light Mode: PWM output, frequency 2.5K, 95%
Power Saving Mode: PWM output, frequency 2.5K, 50%
SOS Mode: PWM output, frequency 2.5K, 50%, ON:500ms OFF:500ms
Compatible With GoPro Hero 5 6 7 Black
 
Package Included:
1 x Diving Light with Battery
1 x Float Grip
1 x Wrench
1 x USB Cable