Author Topic: Decent LED festoon bulbs for automotive use?  (Read 628 times)

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Offline DTJ

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Decent LED festoon bulbs for automotive use?
« on: May 17, 2020, 07:56:23 am »
I'm looking for some reasonable LED festoon style lamps to fit in my car to replace the map or cabin lights.

I can't be bothered rolling my own.

There's plenty of reviews of car LED headlights but I can't find anything for other bulbs.

Ebay has heaps of LED festoons from only a couple of dollars each. Has anyone  bought some and been satisfied with the light output?

Any links or recommendations?

Cheers.


« Last Edit: May 17, 2020, 11:58:05 am by DTJ »
 

Offline Zero999

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Re: Decent LED festoon bulbs for automotive use?
« Reply #1 on: May 17, 2020, 12:06:53 pm »
What sort of fittings are you after?
 

Offline rdl

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Re: Decent LED festoon bulbs for automotive use?
« Reply #2 on: May 17, 2020, 12:48:30 pm »
Here in the US, I bought some from superbrightleds.com quite a few years ago, around 2012 I think. Price wasn't bad, but I was a little disappointed with the brightness. I imagine they've probably gotten better since then. Quality was pretty good, at least they're all still working.
 
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Offline floobydust

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Re: Decent LED festoon bulbs for automotive use?
« Reply #3 on: May 18, 2020, 12:13:53 am »
I've tried a few eBay festoon LED lamps for the car interior. Problem is almost all of them are not very good.
They are either dim, don't fit or run hot or any mix of these issues. My limit was the small 31mm lamp does not allow much to compete with the stock 5W bulb, i.e. 6 LED's is not enough, and a Cree XML and boost converter still needs to get rid of a lot heat in an enclosed fixture.

What worked best for me is SMD 5050 LED arrays with the festoon adapter. Even then, some run quite hot and I had to put in bigger resistors. I stuffed in the biggest board that will fit. I also silicone'd one in place and just soldered wires directly.

Biggest I used is 48-LED white SMD5050, each LED is 3 chips around 9V. Originally 16 of 120R 0805's to give 30-45mA per LED at 12/14V for over 86C too hot for my liking so I went to 200R to get 20-28mA which runs cool. The pc boards are dual 6x4 arrays so you can snap it in two for smaller fixture.
 
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Offline DTJ

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Re: Decent LED festoon bulbs for automotive use?
« Reply #4 on: May 18, 2020, 03:40:52 am »
What sort of fittings are you after?

31mm festoon style for interior roof lights.

The ones that look like this:   <===>   with pointy ends.
 

Offline DTJ

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Re: Decent LED festoon bulbs for automotive use?
« Reply #5 on: May 18, 2020, 03:43:57 am »
I've tried a few eBay festoon LED lamps for the car interior. Problem is almost all of them are not very good.
They are either dim, don't fit or run hot or any mix of these issues.

What worked best for me is SMD 5050 LED arrays with the festoon adapter. Even then, some run quite hot and I had to put in bigger resistors. I stuffed in the biggest board that will fit. I also silicone'd one in place and just soldered wires directly.



That was my worry that I'd just be throwing my money away to find out they were too dim.

I saw those arrays and like the look of them. Unfortunately they wont fit in my vehicle (Toyota). The light fitting has the bulb in a small recess and there is no space between the diffuser and the fitting to install the array. A great idea anyway.
 

Offline DTJ

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Re: Decent LED festoon bulbs for automotive use?
« Reply #6 on: May 18, 2020, 03:49:34 am »
Here in the US, I bought some from superbrightleds.com quite a few years ago, around 2012 I think. Price wasn't bad, but I was a little disappointed with the brightness. I imagine they've probably gotten better since then. Quality was pretty good, at least they're all still working.

I checked them out the prices are almost comparable with eBay. They ask US$2.95 for a dome light festoon.

The UPS shipping to Australia will kill the deal unfortunately.
 

Offline deadlylover

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Re: Decent LED festoon bulbs for automotive use?
« Reply #7 on: May 19, 2020, 07:46:52 am »
Are you still running the stock incandescent? Damn near anything should be an upgrade in light output then.

If you can, try look for ones that use a CREE emitter, the XB-D is advertised on more higher end lights but you'll probably only find normal CREE 3030 LEDs. Best to stick with the style that's just one PCB, don't get ones that have LEDs in all directions because usually it's just press fit together, and over time they will get a little loose and stop working.

They all suck so chances are you'll have to reflow your own emitters.
 

Offline DTJ

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Re: Decent LED festoon bulbs for automotive use?
« Reply #8 on: May 20, 2020, 12:42:26 pm »
Are you still running the stock incandescent? Damn near anything should be an upgrade in light output then.

If you can, try look for ones that use a CREE emitter, the XB-D is advertised on more higher end lights but you'll probably only find normal CREE 3030 LEDs. Best to stick with the style that's just one PCB, don't get ones that have LEDs in all directions because usually it's just press fit together, and over time they will get a little loose and stop working.

They all suck so chances are you'll have to reflow your own emitters.

Yeah the original incandescents are pathetic - dim yellow, barely a candle.

I got a piece of coreflute and cut it to size to see what would fit in the housing without hacking it up. I then ebayed and found some LED arrays that will fit.

They are similar to this:

https://www.ebay.com.au/itm/4x-48-LED-3528-SMD-12V-Car-Interior-Lights-Panel-Bulb-Lamp-T10-BA9S-Dome-Festoon/283062466310?hash=item41e7d67706:g:ydAAAOSw7WxemWUz


If they don't work out I'll try these ones:

https://www.ebay.com.au/itm/48-SMD-COB-LED-Panel-12V-White-Car-Interior-Bulb-Lamp-T10-Festoon-BA9S-Adapter/114090016711?hash=item1a904b7fc7:g:sQoAAOSwH05ZrJw
 

Offline jfiresto

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Re: Decent LED festoon bulbs for automotive use?
« Reply #9 on: May 20, 2020, 02:39:19 pm »
I have found it helpful to look for LED festoon lamps that can operate over 10–30V. Three times, now, I have received lamps with boost regulators that push ca. 50 mA through the LEDs.
 
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Offline DTJ

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Re: Decent LED festoon bulbs for automotive use?
« Reply #10 on: May 30, 2020, 06:09:58 am »
Just as follow up in case someone else wanted to buy some. I bought these:

https://www.ebay.com.au/itm/4x-5050-SMD-24-LED-Car-Light-Panel-Auto-Interior-Bulb-Lamp-T10-BA9S-Dome-Adapter/113328768782?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

Cheap price, quality is good.

The light output is quite high - almost a bit too bright. Definitely many times brighter than the old incandescent bulbs they replaced.

They pull 140mA @ 12V = 1.7W. The festoon lamps they replaced were  8W 12V = 660mA. So a good power saving as well.
 

Offline vk6zgo

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Re: Decent LED festoon bulbs for automotive use?
« Reply #11 on: May 30, 2020, 06:46:29 am »
I'm looking for some reasonable LED festoon style lamps to fit in my car to replace the map or cabin lights.

I can't be bothered rolling my own.

There's plenty of reviews of car LED headlights but I can't find anything for other bulbs.

Ebay has heaps of LED festoons from only a couple of dollars each. Has anyone  bought some and been satisfied with the light output?

Any links or recommendations?

Cheers.

Put your "mask & snorkel" on, & venture out to "Supercheap Auto parts"----they had "stacks of 'em", last time I was there!
They aren't that expensive, & you can physically compare your existing bulbs, plus you can have them, in your hands, now.
 

Offline Lord of nothing

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Re: Decent LED festoon bulbs for automotive use?
« Reply #12 on: May 30, 2020, 08:51:44 am »
Please check if you need a Permission, Certification,...  to modifie your Car.
Made in Japan, destroyed in Sulz im Wienerwald.
 

Offline Zero999

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Re: Decent LED festoon bulbs for automotive use?
« Reply #13 on: May 31, 2020, 08:11:38 am »
What sort of fittings are you after?

31mm festoon style for interior roof lights.

The ones that look like this:   <===>   with pointy ends.
Oh, I see. when I Googled for LED festoon lights I got these!


Please check if you need a Permission, Certification,...  to modifie your Car.
If he was modifying the exterior lights i.e. headlamps, tail lights, indicators etc. then you have a point: there's a risk it can violate certain regulations, but he's talking about changing the light bulbs in the car's interior, which won't affect the vehicles road worthiness or compliance with any laws, especially if they're not supposed to be used, when the vehicle is in motion.
 

Offline Lord of nothing

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Re: Decent LED festoon bulbs for automotive use?
« Reply #14 on: May 31, 2020, 08:18:01 am »
Well if the Car light up some say the Insurance will check if the are modified anything.
He maybe can lose the Insurance for that Car later. If it do a Certified/ Licences Car Repair Shop he can sue them. If he do that at his own he is the fool.
Made in Japan, destroyed in Sulz im Wienerwald.
 

Offline DTJ

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Re: Decent LED festoon bulbs for automotive use?
« Reply #15 on: June 07, 2020, 11:54:04 am »

Put your "mask & snorkel" on, & venture out to "Supercheap Auto parts"----they had "stacks of 'em", last time I was there!
They aren't that expensive, & you can physically compare your existing bulbs, plus you can have them, in your hands, now.


Nah bugger Supercheap, I'm a tight wad! I did have a  look but they are 3 times the eBay price. I have 4 internal lights to LEDify - Supercheap prices would be $40 to $80 all up. :)

 

Offline DTJ

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Re: Decent LED festoon bulbs for automotive use?
« Reply #16 on: June 07, 2020, 11:55:09 am »
Well if the Car light up some say the Insurance will check if the are modified anything.


Haha not that kind of festoon light.

Although I have seen idiots driving around with similar lighting on their cars!
 


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