Im iffy about spending money on 6k bulbs that arent gonna produce as much output as the Ultinon's

 

Our 6k bulbs are rated at approx 2400 lumens which is the same as the Philips Ultinon.

Steve

 

Wow, thats kind of low for me. I like my 3200lumens....

 

im still a bit confused.

so as a 2007 is250 with the HID and Adaptive Headlight, do we get D4S or D2S...? and i see that xenondepot.com does carry Philips Ultinon 6000k D2S Bulb

is it really by Philips and will it be OK in my 2007 is250?

 

^^ our cars that came with factory HID have D4S bulbs.

 

What is the difeerence between D4s and D2s?

 

D2S and D4S are completely different bulbs, as per the name is different.

Bulbs come in all sorts of sizes and fitments that are used for different housings. There is H1 all the way to H11 sized bulbs, 9004, 9005, 9006 etc bulbs, D2's, D4's and some others that aren't so popular. Basically they're just different sized and different shapes to accomodate different housings except D4's have the latest technology of being mercury free. Each bulb size may or may not produce more lumens (light output) depending on its individual design.

Starting from D2 bulbs (and subsequently D4 bulbs), an S, R or C is used after the name. For example D2S, D2R, D4R, D4C, etc. These bulbs all fit one another however, S bulbs are for projector type housings, R for reflector type housings and C for both housings. The reason being that R bulbs have a ceramic layer on the side of the bulb to prevent excessive glare.

And all IS250/350/F's that have OEM HID and AFS used D4S bulbs. If they don't have HID/AFS, then the bulb size is H11. As for fogs it's 9006 sized bulbs

 

Hi,

Our Philips D2S bulbs are made by Philips however a D2S bulb will not work with a D4S ballast. You would need to get D4S bulbs for your vehicles.

Steve

 

Is it not true that the Ultinons put out a brighter light?

 

this was sooo much help

 

hm..I heard that these aftermarket 6000k and 8000k aftermarket bulbs
don't last that long..even the ones from vendors don't really last long
I have a friend who already went through his third set..=/

 

perhaps said friend is just unlucky.

did he/she get it from xenondepot or mobile hid or CLT?

 

False, Less lumens..

 

yes, he got his from xenondepot and he is already on his third set I believe
and he carries an extra set on his trunk

 

That's kinda sad that the XD bulbs don't even last.