Technical Specifications: Beam Intensity - 5mw peak, 633nm, class IIIa laser. Maximum output that federal law and technology allow. Dot Size - Approximately 0.5" diameter at 50 feet. Power Source - Two #2032 lithium batteries (included); over four hours of on-time use and a five year shelf life.
Front-Activation button Rubber-Overmold construction Fully adjustable for windage and elevation Compact design for concealed carry or smaller hands Master On/Off switch Three-year warranty http://www.crimsontrace.com/hoghunter_fit_notes.pdf