Underwater Kinetics MiniQ40 MK2 Black Pillow Pack with Batteries Black. Equipped with a convenient push-button switch that's easy to use even with heavy gloves on the Mini-Q40 MK2 can produce 250 lumens for 5 hours of run time. Running on four standard AA batteries it's always easy to keep the light running no matter where you are. Perfect for travel and those long dive trips the light only weights 6 oz measures 7.5 inches in length and is easy to pack due to its small size. A strong focused beam cuts through murky water with ease and lights up any dive day or night. Push button rear switch. Dimensions 7.5 x 1.6 x 1.4 inches (19 x 4 x 3.56 cm). Mask strap included for hands free use. New optics system for better visibility. Depth rated to 100 m. Specifications for Underwater Kinetics Mini Q40 MK2 Push Button 250 Lumens Flashlight: Manufacturer: Underwater Kinetics Color: Black Light Output: 250 lumens Battery Life: 8 Hours Bulb Type: LED Weight: 6 oz Quantity: 1 Battery Type: AA Condition: New Package Contents: Underwater Kinetics Mini Q40 MK2 Push Button 250 Lumens Flashlight Underwater Kinetics 514630: MiniQ40 MK2 Black Pillow Pack with Batteries Black