This flashlight provides uninterrupted light for 150 hours on four AA batteries thanks to its regulated circuit and superior LED technology. It has two light settings: a single bright LED that provides a cone of illumination out to 260' and three ultrabright LEDs that provide a cone of light out to 75'. Either setting can be controlled at the press of a button, providing 65 lumens of true white light. The regulated circuit provides constant brightness for the duration of battery life, and its superior optics provides optimal beam quality. Its impact-resistant plastic housing has a rubber over-mold that is easy to grip. It can be used in up to 3' deep water thanks to its waterproofing. Includes lanyard for attaching to wrist and four AA batteries. 6 1/2" L x 1 1/2" Diam. (7 1/2 oz.)