The Emergency Flash II is an LED emergency flash with arm strap that is waterproof up to 50 meters diving depth. The Emergency Flash II emits 20 to 40 flashes per minute and has a light intensity of 5 candela. With a burning time of 8 hours and a weight of 80 grams, the Emergency Flash II is a reliable companion for sports, sailing and diving. Dimensions: 125 x Ø 40 mmThe Emergency Flash II requires a baby cell as battery. This is not included in the delivery.