Diving Waterproof Light Bigblue Underwater Light *Please check item ③ in the profile for compatibility. Used only once in November 2022 at a topography point in Miyakojima. After that, it was stored in a regulator bag. -Product Contents- Main unit, instruction manual, maintenance parts included (O-rings, screws with O-rings) -Detailed Information- ■Brightness: 450lm (lumens) ■Beam Angle: Spot beam, wide beam 37° stepless adjustment ■Color Temperature: 6500K (Kelvin) ■Switch: Slide-type magnetic switch ■Burn Time: Approximately 4 hours ■Compatible Batteries: AAA alkaline batteries or rechargeable batteries x 3 ■Size: 35.5mm x 121.5mm (diameter x total length) ■Weight: 193g / 81g (on land / underwater) ■Pressure Resistance: 100m ■Body Material: Corrosion-resistant aluminum alloy ■Accessories: Instruction manual, spare O-rings x 2, screws with O-rings Popular spot-wide switching light. Continuous burn time is up to 4 hours. Optional light adapters and hands-free gloves can be attached. Spot and wide beam switching is possible.