If you dive you will know conventional lamps do not project light very far in poor water conditions. Refraction and reflection of small particles rule out long ranges. Therefore LED Lenser have developed a lamp that practically punches its way through the murky depths, due to its axial collimator it attains a strength of focus hitherto considered impossible. It produces a long narrow beam with minimal edge spill that illuminates only the object at hand and not the surrounding particles, thus enabling you to see further in poor conditions. The head part of the lamp consists of high-grade stainless steel, the body of shockproof synthetic material. Its ergonomic design is exceptionally comfortable in gloved hands. Power is supplied by four (AA) batteries and provide more than 50 hours of useable light. The 1.5w LED chip has a service life of 100,000 hours, if the lamp is operated for 3 hours per week the LED diode will last 600 years. CE and TUV rated to 60M.