The Barr and Stroud M-2 LED magnifier features the same high quality 90mm diameter 2x/4x magnifying lens as the premium M-1 model with a lighter overall weight. The plastic handle with rubberised covering is ergonomically designed for an extremely comfortable hold, making it a pleasure to use. Incorporating single intensity LED illumination, whilst not as technically sophisticated and advanced as the M-1 is nevertheless very useful. The M-2 represents truly outstanding value and functionality in its class. Requires 2 x AA batteries.