ClearView Cordless LED provides 55,000 Lux illumination. It comes with three rechargeable batteries and charging station. Each battery last 2 hours and takes 1.5 hours to charge fully. The light weight battery (22 grams) mounts easily on the top of the LED. The LED (8 grams) will fit all Hogies loupes & attach to most other loupes on the market. Suppiled with an external orange filter and one touch on/off the ClearView Cordless is the only light you need.