Product details:

The essence of form + function now 60% brighter thanks to the latest LEDs and special light concentrating optics. Each Gamma starts with aircraft grade aluminum, precision-machined into a supremely ergonomic, no-slip contour grip. Ikelite purposefully avoids unnecessary grooves and texturing on the light body to allow it to slide in and out of your pocket without snagging. Military-grade anodizing and a double O-ring seal provide corrosion-proof and waterproof operation up to 400' (120 meters). A heavy duty mechanical tail switch provides either continuous or momentary lighting at the touch of a button. Like every Ikelite product, Gamma is built by hand in the USA and individually tested for function and waterproof integrity. Ikelite back its products with over 50 years of experience and service within the dive industry. The lights LED lamp produces a piercing 350 lumens of brightness in a concentrated 10 degree beam angle with a color temperature of 6500K. The light is powered by 2 CR123 batteries (included) with over 10-hours of burn time. Light measures (L x Dia.) 5.6 x 1.4 (142 mm x 36 mm) and weighs 4 oz. (113 g). Light comes with a wrist lanyard with cord lock, silicone lubricant (1 cc tube) and an owner's manual.