Kraken new flash/KR-S80:
Maximum flash energy: 80 joules (Ws)
Color temperature: 6000K
Flash index (GN value): 11 (test condition 1 distance & ISO100)
Mode: Manual M mode
Light control mode: S1 (single flash mode), S2 (double flash pre-flash mode)
Irradiation angle: greater than 140°
Full power recycling time: 1.0 second (full power recycling time)
Flash power level: 6 power levels (80Ws, 40Ws, 20Ws, 10Ws, 5Ws, 2Ws)
Full power full output flash times: about 800 times
Battery: 2x single 21700 battery (4000mAh), with Type  C charging port, can be charged with a 5V USB charger or a PD charger
Photographic light: 3000 lumens fill light
Video fill light level: three levels (100%, 75%, 50%, 25%, 0%)
Adapter: YS clamp + 1-inch ball head
Flash triggering method: optical fiber (7mm optical fiber hole & M11 threaded interface)
OLED display can be rotated 180° to display inverted
Waterproof depth: 100 meters
Product size: 72mm x 73mm x 182mm
Product weight: 980g on land & 375g underwater