What are Xenon Bulbs?

What are Xenon / HID bulbs?

High intensity discharge (HID) have been popular since their introduction on high end luxury cars in the 1990’s, but are now more common place.

Xenon lights are up to 3 times brighter than halogen bulbs and can last up to 2,500 hours but tend to last longer due to usage patterns.

They are more energy efficient compared to halogen bulbs.

How do Xenon / HID bulbs work?

High voltage passes current through two opposing electrodes that ionizes the xenon gas in the glass capsule thereby creating an arc.

The temperature within the capsule rises quickly ionising the gas mixture lowering the resistance between the two electrodes.

The ballast then constantly provides the bulb with constant high power ensuring that the bulb is up to operating temperature – this can take a few seconds and is noticeable when the lights are turned on and get brighter gradually.