This rugged, waterproof flashlight measures 6.3'' x 1.65'', making it a perfect portable solution in emergencies. Battery Powered (Requires 4 x AA Battery NOT included), more than 10 hours of continuous burn time. IP68 Super waterproof, easy operation, suitable for both on land or under water. Dive depth up to more than 300 ft. Can be pad printed with a company name and logo.