High intensity Discharge(HID) What is HID??? The uv-radiation crystal glass tube is full of inactive gas such as xenon which is ionized by the 12 volt voltage which can be expanded to23 kilo volt by a transformer. And then give out light. Why we use HID??? Positive Light is more bright Has a longer lifetime More similar to the sunshine Has a stable output Comparison between HID and Halogen lamp HID Halogen lamp HID Halogen lamp pared to Halogen lamp) The pervious to light is lower when the weather is foggy , rainy or snowy The light is so bright that drivers e from the opposite direction have a little difficulty to distinguish clearly The development of AUTO HEAD LAMP Nowadays more and more automobiles use HID ,because of the clear advantages. Some luxury brands such as BENS BMW and Audi use LED for their AUTO HEAD LAMP. For LED is more save energy and longer lifetime. THANK YOU
