LED car bulbs

[quercus]

I know there's some interest in these things and if they work, but there's very little real user feedback on whether they're worth having. Here's my experience, based on a quick bit of retro-fitting to the Volvo.

Mine came from http://ultraleds.co.uk Good range, good prices, delivery is reasonable.

Comments

[jarkman]

What I can't find at Ultraleds are the square-based ones with the two little spades that my 850 needs in various dashy places. I suspect they are R509TL, and they seem to be Very Rare. Bastards.

[quercus]

What does your driver's handbook say? Mine (if you read it obsesively) has a complete list of all bulbs and their relevant fittings.

What about this? (it lists the 850)
http://www.ultraleds.co.uk/u509tw509t-twist-bulb-custom-white-frosted-p-954.html

[jarkman]

Mine has a list, but it doesn't match the dead bulbs I've taken out. Long, thin, square-section plastic holder with two tiny spades.

Festoon LEDs to replace Festoon 239

[mr_mogwye]

Who else apart from Ultraleds supply - 37mm 3WA SMT Festoon 5W White - I need to source a trade supplier to purchase both Red & White in quantities. Mr Mogwye