Philips D2S CrystalVision Xenon HID Headlight Bulb, Pack of 2

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Price: $148.04 $144.45   

Product Feature

• Xenon HID: State-of-the-Art Lighting Technology
• Highest Light Output
• Precise Light Distribution
• Brilliant "Daylight" Whit Light
• DOT Compliant and Street Legal

Product Description

Philips CrystalVision was already the upgrade bulb that came closest to the bright blue/white look of HID. Now, improved technology makes CrystalVision Ultra even whiter and brighter, and even closer to the look of HID. CrystalVision Ultra delivers the whitest light available from a halogen bulb. At a color temperature of up to 4,000K, no halogen is whiter. If you want the look of HID, CrystalVision Ultra is the light for you!

Philips D2S CrystalVision Xenon HID Headlight Bulb, Pack of 2 Review

The Good:
Decent color
If your D2S bulbs have been used for a few years (or one year heavily) this one will easily appear brighter.

The Bad:
Colored glass which means lost output due to filtering out lower wavelengths.
Not as good as the previous Crystal Vision Series

Detailed:
This is the second series of Crystal Vision bulbs by Philips (as indicated by the product name CVS2). The original Crystal Vision was the 85122 CX, which was actually a renamed 85122 CM (the CM stood for color match and was meant to match the color of aged bulbs). When Philips released a bulb that no longer got bluer as it aged (the 85122+ which starts at 4300K and stays there), the color match name no longer made sense, so the bulb was renamed Crystal Vision. Clear as mud? Good :-P

Unfortunately, this bulb is a downgrade from the original. Instead of using a more expensive (and effective) salt mixture to get the 5000K light, the designers opted to use blue colored glass instead. This is bad because the filter serves to absorb some of the light that would otherwise be directed at the road. This can be a significant amount because HIDs emit a good amount of light in the yellow region (which the blue serves to filter a good amount out). It isn't uncommon to see decreases in output of up to 20% just due to the filter alone (this is just in the 5000-6000K range bulbs, by the time you reach 8000-10000K you are absorbing up so much that they are dimmer than halogens).

If you have been using the current bulbs in your vehicle for a while, these will definitely be brighter (HIDs lose output as they age instead of burning out, by around 2500hs of use the bulb is no brighter than a halogen). That being said there are much better 5000K range bulbs than this one to be honest. There is the aforementioned 85122 CX, but the best is the OSRAM 66240CBI "Cool Blue Intense". The OSRAM CBI has clear glass and actually is the first 5000K color bulb to have the same number of lumens of output as the OEM 4300K bulbs(3200 lumens) usually you lost around 300-600 lumens just in the jump to 5000K output.

NOTE!!!! The last image (supplied by the user allen) is not of this particular bulb. That image is of a Philips DL35 or DL50 "Fat Boy" style bulb. The body of the glass part is MUCH MUCH wider than on a standard 35W bulb. Don't let the image mislead you. Also, this bulb has a pale blue glass envelope and pale blue return wire.

EDIT: The last image appears to have been pulled by Amazon or maybe the user.

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