D2R vs. D2S
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D2R vs. D2S
I know that d2r are reflector type and d2s are projector type bulbs. I also know that our cars use d2r. Now the question I have is if I can use a d2s bulb instead. I am looking at these on ebay
http://cgi.ebay.com/ebaymotors/2-New...QQcmdZViewItem
It says they work in d2r and d2s housings and that d2s is actually a brighter bulb. I guess I just want to know if anyone on here knows if there is any truth to this. One of my d2r bulbs bit the dust and I am looking for replacements. I just can't find any at a reasonable price. I don't want ricey 12000 K bulbs or anything like that, I really want the most light output I can get. I am seriously considering buying these, the guy has pretty good feedback. You lighting experts out there tell me what to do. Sould I get Philips or OSRAM or what. I really don't want to spend $200 for a pair of bulbs.
GOD I'M CHEAP
-Stephen
http://cgi.ebay.com/ebaymotors/2-New...QQcmdZViewItem
It says they work in d2r and d2s housings and that d2s is actually a brighter bulb. I guess I just want to know if anyone on here knows if there is any truth to this. One of my d2r bulbs bit the dust and I am looking for replacements. I just can't find any at a reasonable price. I don't want ricey 12000 K bulbs or anything like that, I really want the most light output I can get. I am seriously considering buying these, the guy has pretty good feedback. You lighting experts out there tell me what to do. Sould I get Philips or OSRAM or what. I really don't want to spend $200 for a pair of bulbs.
GOD I'M CHEAP
-Stephen
Last edited by silv_w210; Jan 13, 2006 at 10:14 PM.
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From: Newark,NJ
2010 Charcoal Grey E350 Coupe
Philips or Sylvania are pretty good. I got a pair of Philips from www.outmotoring.com for $49. But to get the optimum output, contact a member here by the name of Zam2000. He is the light guru here,and can definitely answer all your questions on that subject..... 
Thread Starter
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Originally Posted by ruffrob
Philips or Sylvania are pretty good. I got a pair of Philips from www.outmotoring.com for $49. But to get the optimum output, contact a member here by the name of Zam2000. He is the light guru here,and can definitely answer all your questions on that subject.....
-Stephen
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Joined: Dec 2005
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From: Atlanta
2002 G500, 2007 CLS 550, 2018 GLC 300
Optimal output: D2S 4300k Philips
For xenon HIDs, the Philips D2S 4300k bulb throws the most lumens. If you opt to go up the Kelvin scale to get a flatter, bluer light, i.e. 6000k and above, you start to lose actual light output. The optimal route for W210 xenons is to purchase Depo projector headlights, toss out the inferior projector assemblies, retrofit in BMW X5 projector assemblies and ballasts and Philips 4300k D2S bulbs. The stock Mercedes free-form reflector D2R xenons are dismal compared to a good D2S projector setup.
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From: Seattle WA
99 E320
I've never had D2R bulb in hand so unable to confirm firsthand. But according
to my notes, they're notched differently so D2S isn't a drop in plug n play.
D2R is made for reflection bowl. D2S is made for projection designed bowl.
If you retrofitted D2S into a D2R socket, the light output may appear slightly
brighter but the beam pattern will not be optimum and may result in hot spots
(or dimmed sectors).
to my notes, they're notched differently so D2S isn't a drop in plug n play.
D2R is made for reflection bowl. D2S is made for projection designed bowl.
If you retrofitted D2S into a D2R socket, the light output may appear slightly
brighter but the beam pattern will not be optimum and may result in hot spots
(or dimmed sectors).
Thread Starter
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Originally Posted by raymond g-
I've never had D2R bulb in hand so unable to confirm firsthand. But according
to my notes, they're notched differently so D2S isn't a drop in plug n play.
D2R is made for reflection bowl. D2S is made for projection designed bowl.
If you retrofitted D2S into a D2R socket, the light output may appear slightly
brighter but the beam pattern will not be optimum and may result in hot spots
(or dimmed sectors).
to my notes, they're notched differently so D2S isn't a drop in plug n play.
D2R is made for reflection bowl. D2S is made for projection designed bowl.
If you retrofitted D2S into a D2R socket, the light output may appear slightly
brighter but the beam pattern will not be optimum and may result in hot spots
(or dimmed sectors).
I can't find any info on doing this but I see many ebay sellers out there selling the d2s bulbs notched to fit d2r also, so there has to be some people out there who are running around with them. Anyone with advise?
