HID stands for "High Intensity Discharge". Becoming more popular on high-end cars, the light given from an HID 35W bulb is more than double the light from a 60W Halogen bulb. Xenon light is based on the gas discharge principle , where an arc of light is created between two electrodes within the glass bulb filled with metal salts and inert Xenon gas. So there's no filament.

Xenon bulb life is in the order of 4500 hours - three times the life of a Halogen bulb.

HID lights are powered at 80V, so a 'ballast' power unit is needed to power these bulbs. Bike Monkey Ballast units feature the more expensive slim version being more suitable for some motorcycles, especially naked - non fairing - motorcycles or custom vehicles.

All Ballasts have under and over voltage protection as well as short circuit protection. All units are 100% waterproof.