Light & Motion SOLA Nightsea Fluoro Underwater Light The dive industry's most powerful light for fluorescent diving; blue light acts as an excitor turning the reef into a psychedelic underworld 3000mW radiant flux flood and 1700mW radiant flux spot output certified to the FL-1 Standard; regulated output so light does not dim Nightsea blue light technology is the industry standard for flouro-diving Factory-sealed design with external charge ports for flood-free reliability; depth rated to 100m (330ft) Manufactured in California and backed by Light & Motion's 2-year Enhanced Experience Guarantee