Peter Cooper Car Repairs

17 Wintersells Road Byfleet Surrey KT14 7LF

01932 340384




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HID Replacement Bulbs Xenon D2S

High Intensity Discharge


Warning the voltage required to start these lamps is  above 28,000 volts.

The battery should be disconnected before working on these systems see the car workshop manual for further details.

HID D2S Gas Discharge lamp

D2S Bulbs, Unlike normal halogen headlamp systems, HID headlamps do not use a filament. Instead, they contain an inert gas (Xenon), which emits light when it comes in contact with a high-voltage electrical arc.

HID Gas discharge lamp diagram


Because D2S Bulbs emit nearly twice the light compared to standard halogen bulbs you can rest assured you will be given far more time to deal with any potentially dangerous situations, Road markings and signs are also better illuminated.

A motorist using D2S Bulbs is able to see about 100 metres to the front of the vehicle, compared to about 58 metres with standard halogen lighting. See example below:

The life span of a D2S bulb should equal that of a car, which means that the bulb will only have to be replaced in exceptional cases.

Another advantage of these HID bulbs is that they consume only half the power, this saves energy and are therefore more environmentally friendly.

We only ever supply Philips or Osram HID units, Because of this you know you are getting quality products from a reputable manufacturer.

These bulbs are very expensive we always keep a supply in stock.

Safety precautions when handling gas discharge bulbs.

Never renew bulbs if you are not familiar with the necessary procedure, safety precautions and tools required.

WARNING  High voltage! Danger to life!

Always disconnect the battery earth cable before working on parts of the gas discharge headlights marked with yellow high-voltage warning symbols.

Then switch the dipped beam on and off again to dissipate any residual voltage.

Switch off the ignition and all electrical equipment and remove the ignition key.

Never operate the gas discharge lamp control unit without a gas discharge lamp.

On account of the high voltages (above 28000 V on gas discharge lamp ignition), the gas discharge lamp is only to be operated in the headlight housing.


Risk of injury from burns, UV radiation, blinding and explosion.

On account of the high temperatures, the absorption of UV radiation and the risk of blinding, the gas discharge lamp is only to be operated in the headlight housing.

Never look into the light beam as this could impair vision for a lengthy period.

Gas discharge lamps are pressurised and can burst when they are renewed.

Always wear safety goggles and gloves on removing and installing the gas discharge lamp.


Observe environmental requirements.

Gas discharge lamps are hazardous waste. They contain metallic mercury (Hg) and traces of thallium.

Never destroy gas discharge lamps. Avoid contact with shattered glass bulbs.

Observe disposal regulations. Gas discharge lamps should only be disposed of in the appropriate containers at an official collection point.


Never grasp hold of the glass bulb of gas discharge lamps with bare hands. The finger mark this would leave would evaporate on account of the heat of the bulb when switched on, become deposited on the reflector and impair the brightness of the headlight.

Wear clean fabric gloves when fitting the gas discharge lamp.

Only replace defective gas discharge lamps with a gas discharge lamp of the same type. The designation can be found on the lamp cap or on the glass bulb.

On fitting, make sure connectors are properly engaged and firmly attached.


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