Originally Posted by PureDrifter

new in box?

receipt/proof of purchase needs to be posted up.

Originally Posted by kim0217

whats the difference between d4s to d2s?

Originally Posted by s4play

Being the techy nerdy guy I am I had to find out the differences first hand and here's why we CANNOT use D2S in a D4S environment (direct from wikepedia):

[edit] Mercury content
HID headlamp bulb types D1R, D1S, D2R, D2S and 9500 contain the toxic heavy metal mercury. The disposal of mercury-containing vehicle parts is increasingly regulated throughout the world, for example under US EPA regulations. Newer HID bulb designs D3R, D3S, D4R, and D4S which are in production since 2004 contain no mercury,[30][31] but are not electrically or physically compatible with headlamps designed for previous bulb types.


I've always been curious just exactly how HID works and I think this explanation is really good reading just FYI

[edit] Burner and ballast operation
HID headlamp bulbs do not run on low-voltage DC current, so they require a ballast with either an internal or external ignitor. The ignitor is integrated into the bulb in D1 and D3 systems, and is either a separate unit or integral with the electronic ballast in D2 and D4 systems. The ballast controls the current to the bulb. The ignition and ballast operation proceeds in three stages:

1) Ignition: a high voltage pulse is used to produce a spark — in a manner similar to a spark plug – which ionises the Xenon gas, creating a conducting tunnel between the tungsten electrodes. In this tunnel, the electrical resistance is reduced and current flows between the electrodes.

2) Initial phase: the bulb is driven with controlled overload. Because the arc is operated at high power, the temperature in the capsule rises quickly. The metallic salts vapourise, and the arc is intensified and made spectrally more complete. The resistance between the electrodes also falls; the electronic ballast control gear registers this and automatically switches to continuous operation.

3) Continuous operation: all metal salts are in the vapour phase, the arc has attained its stable shape, and the luminous efficacy has attained its nominal value. The ballast now supplies stable electrical power so the arc will not flicker.


hope you guys enjoy as much as I did

rick

Originally Posted by kim0217

thanks for the info, but are those plug and play with 07 IS250? cuz I thought the low beams are D4S?

Originally Posted by TaYLoRGanG

I have a 2011 IS250 base model. So it doesn't have much options really nor did it had the cool LED lights or the HID headlights. Will this work for my model?