This is the UK Light Cannon eLED (L1) Scuba Diving Light with Pistol or Lantern Grip Features: Brightness remains even higher underwater than in air with UK&';s unique LED water cooling design Full and half-power switch can extend battery life even more Power circuit control maintains almost contant brightness with alkaline or rechargeable batteries Non-breakable locking switch prevents accidental actuation.Rubber sleeve lanyard included Powered by disposable alkaline batteries or rechargeable UK NiCad Upgrade kit. Also uses individual nicad or NiMH C-size batteries Proudly made in the USA In the tradition of the original Light Cannon HID light, the Light Cannon eLED delivers an even brighter illumination and maintains this brightness throughout the battery life. The beam is wide enough for scanning the reef at night or exploration of the interior of a wreck. Using the dovetail handle attachment either pistol or lantern grips can be attached as well as a photo arm.