This is the XS Scuba LT200 LED Dive Light Scuba Diving Light and Optional Wrist Mount Features: Light Source: 3 watt Cree LED (XPG) / 240 lumens / 6000 K color Battery Type: 3 AAA alkaline (included) Switch: Push button with rubber pad Burn Time: Bulb = 50,000 hours / Batteries = 5-6 hours Max Operation Depth: 400 feet (120 meters) Includes adjustable wrist strap Available as light only or with wrist mount kit or wrist mount separately Light Only (p/n LT200) Light with wristmount (p/n LT250) Wrist Mount only (p/n LT230) The Light source is a 3 watt Cree LED (XPG) that produces 240 lumens with a color temperature of 6000 K. The light is powered by 3 X AAA alkaline batteries (included) with a burn time of 5 to 6-hours. The LED lamp may never need to be replaced with its 50,000 hour lifespan. Operating the light is easy with the push button tail switch with rubber pad. The light has a depth rating of 400' (120 meters). The XS Scuba 3W 240 Lumens LED Dive Light is made from durable machined from a single piece of high grade anodized aluminum."