Topic:  Technology The structure of modern automobile lamps is becoming more and more complicated, at the same time the function is being improved gradually. The development of automobile lamps has experienced four stages. The first generation of automotive light source is fuels (candles, coal oil or acetylene). These fuels burn to emit lights. Fuels can only satisfy the requirement of early stage automobile lamps due to its low luminous efficiency, weak light intensity, unstable performance, complex operation and etc. shortcomings. .. Read more