At the forefront of low light and nocturnal motorsport navigation aids since their origin in the early 1970's, Don Barrow Lights or 'Potis' have changed visually very little since their introduction and are still moulded using the original dies.A compact and robust body lends itself to a competition environment, whilst a crystal glass magnifier and LED illumination supply up to 50% magnification, highest levels of clarity for easier map viewing even on the roughest whites and total light spread to see the upcoming route.This model is supplied with one tungsten LED and one white LED plus a rheostat enabling the user to tailor their requirements under varying light conditions whilst retaining the same body mould.