The UML Sea Flash lifejacket light is an extremely bright LED flashing lifejacket light which activates automatically when the sensor makes contact with water. The UML Lifejacket Light has been tested and approved to the latest Lifejacket Light Standards and is marked SOLAS APPROVED 0474/11. Size 45 x 19 x 31mm. Features include: Can be activated manually. Suitable for all lifejackets. Oral tube mounting bracket supplied. SOLAS Approved Oral tube mounting bracket also sold separately