Compact and powerful, with a sculpted shape that makes it feel like an extension of your hand, this 210 lumens output dive light is equally at home on land or sea. Maxbright LED is extremely bright and energy efficient, providing a powerful white light and up to 10 hours of continual burn time. Waterproof for continual submersion to 300 feet. Powered by four AA alkaline batteries (included). Made in U.S.A.