LED indicator bulbs question.

dhobbs · Post by **dhobbs** » Tue Feb 05, 2019 2:34 pm

I’m going to replace my indicator bulbs with LEDs but before I buy any are there any tips for which ones to get?

I have the facelift lights with Xenons so fronts indicators are h21w. Are these clear bulbs or do they need to be amber?
Also is there a size limit, I.e. do they need to be slim to get in the light fixture?

The rear indicators are silver ones, I assume these need to be Amber?

My plan is to get them from eBay as they will be far cheaper then the osram ones.

dhobbs · Post by **dhobbs** » Thu Feb 07, 2019 8:32 pm

Whipped out one of the front indicators. It’s a clear bulb.

Need to find an LED replacement of similar diameter now.

Scooba_Steve · Post by **Scooba_Steve** » Sat Feb 09, 2019 4:54 pm

I have rear LED indicators but not fronts as those are not made by Philips/Osram. I've tried ebay LEDs but they all tend to fail after a while. My Philips W5W front sidelights have been in for almost 4 years with no issues and the Osram rear indicator and brake LEDs for about 2. Code out the checks and you're good to go, they may be expensive but if you buy cheap you'll buy twice!

Scooba_Steve · Post by **Scooba_Steve** » Sat Feb 09, 2019 4:59 pm

Rear indicator: https://www.osram.com/am/ecat/LEDriving ... P_1174327/

Rear brake: https://www.osram.com/am/ecat/LEDriving ... P_4053095/

No point doing the rear fogs. Also have LED reverse but nothing really works for getting enough light out!

Also avoid the 'CANBUS' LEDs - they simply burn out, better to code out the checks rather than fool them with a resistor.

dhobbs · Post by **dhobbs** » Sun Feb 17, 2019 5:55 pm

So I bought some eBay LED bulbs for the rear and wasn’t successful.
I bought the indicator and brake light from Argo on eBay and although they look good, they don’t work on my car. Thinking I have been sold a pup, I went and tested them all with a spare battery and some leads. Bulbs were absolutely fine! The large outer shell is ground and the tip is positive. So it would seem that my car the lights are wired up with a reverse polarity. Not a problem with normal bulbs, but definitely with LEDs.

Is there any way to swap this over or does it look like I’m getting some more bulbs?!

Scooba_Steve · Post by **Scooba_Steve** » Sun Feb 17, 2019 7:30 pm

Don't think so, as the holders are keyed. Seriously, just get the Osram for the rears

dhobbs · Post by **dhobbs** » Sun Feb 17, 2019 10:46 pm

Scooba_Steve wrote: ↑Sun Feb 17, 2019 7:30 pm Don't think so, as the holders are keyed. Seriously, just get the Osram for the rears

Yeah, looks like that may be my only option.

Don’t say it “I told you so!”

Umfaan · Post by **Umfaan** » Sun Feb 17, 2019 10:53 pm

Agree ..........LEDs .......buy cheap buy twice ....

.

Homer · Post by **Homer** » Sun Feb 17, 2019 11:21 pm

Are the rear and side indicator bulbs the same?

Scooba_Steve · Post by **Scooba_Steve** » Mon Feb 18, 2019 1:15 am

Homer wrote: ↑Sun Feb 17, 2019 11:21 pm Are the rear and side indecator bulbs the same?

No, rear PY21W side W5W

Scooba_Steve · Post by **Scooba_Steve** » Mon Feb 18, 2019 1:18 am

dhobbs wrote: ↑Sun Feb 17, 2019 10:46 pm
Scooba_Steve wrote: ↑Sun Feb 17, 2019 7:30 pm Don't think so, as the holders are keyed. Seriously, just get the Osram for the rears
Yeah, looks like that may be my only option.

Don’t say it “I told you so!”

I'm not sure if the Osram ones do not depend on polarity but they do work in mine, I don't think there is a standard for what should be positive/negative in the bulb holders as obviously it's irrelevant for bulbs.

dhobbs · Post by **dhobbs** » Mon Feb 18, 2019 9:35 am

Scooba_Steve wrote: ↑Mon Feb 18, 2019 1:15 am
Homer wrote: ↑Sun Feb 17, 2019 11:21 pm Are the rear and side indecator bulbs the same?
No, rear PY21W side W5W

The side indicators are able to rotate so polarity isn’t an issue.
With clear lenses you’ll need an amber LED.

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