The difference between the two - lens and double - lens
The lens of the vehicle is divided into two types: single light and double light, and the single lens is designed with a lens corresponding to near and far light, such as M6 near lens, Mondeo high beam lens Is that it can be similar to the transformation of near and near light, usually near the state of light, when the same time open the high light, it is through the electromagnetic mechanism to operate variable light file, so that the light is also assigned to the high beam light Up, equal to have two high light together. Double light lens is generally used in the high-end car above, such as A6. BMW. Mercedes-Benz, etc .. In the far light state, there are double halogen + bi-xenon bulb irradiation distant road, brightness doubled.
Double light lens in the variable light blank, with a lens can be achieved near light and high light, a car mounted pair of dual lens can be (such as the Audi A5), save space, variable speed fast, but there are mechanical parts, High cost, relatively short life, but in the car's life, generally not bad.
Double lens is generally divided into low beam and far light lens, a single function, but no variable light body, long life, light type a little better, low cost
