XenonDepot

iTrader: (11)

We did have some issues when the D4 bulbs were first introduced however the newer generations work fine. On another note, any customer that did experience a problem with our D4 bulbs did have the problem resolved.

iSuxeL

iTrader: (21)

Yes, I did see that thanks to great vendors like you Steve

SeOuLiS250

iTrader: (5)

so how long does these bulbs last??
I want to upgrade mine

cduluk

the philips 6000k ultinon's have a little more blue/violet than the stock 4300k bulbs, but have a smaller luminous flux value (the light the eye can see).

4300k being 3200 lumens
6000k being 2400 lumens

800 lumens is like one hallogen bulb. So the ultinon's plus one halogen bulb would equal the luminous flux of the 4300k

I am running 6000k philips ultinons in my ls460 projector retrofit, to me they are better than the 4300k. The color is AMAZING- whenever i get into a car with 4300k, it just looks like halogen to me... i can't tell there's any less light.

And the ultinon's last just as long as the stock 4300k xenon bulbs... They really should be replaced every 5 years or so anyways as they lose a lot of output after 2000 hours... after 2000 hours (approx 5 years of running 1 hr a day) they emit the same amt of lumens as halogen bulbs.

Get the 6000k ultinon's, you won't regret it. The bases of the D2S and D4S bulbs are close, meaning all you need to do is cut a notch in D2S to fit into D4S socket, but the base that meets with the ballast is different. You'd need to get D2S ballasts.

XenonDepot

iTrader: (11)

I just wanted to clarify that D2S bulbs will not work with D4S ballasts.

Steve

sinister2c

General when you go up in color temperature you lose lumens. That explains why a 4100k lamp puts out 3200 lm and a 6000k lamp puts out only 2400 lm at the same wattage draw.

This is the same with T8 fluorescent technology too.