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Adapting white LEDs as festoon bulbs?

I've heard them called cartridge lamps, or as commonly; 'fuse bulbs'. The dome light moniker is simply an application, which may have taken on some weight as a common description of the type.

But 'festoon' is not a term I've *ever* heard to describe them on this side of the lake. Sounds vaguely silly...like 'pantaloons'.

Google does indeed provide many hits for 'festoon lamp'; but most hits seem to reference the UK, with a few US distributers. Interestingly, the first hit also references 'fuse lamp'; and many, many (the majority, maybe) are for LED replacements.

jak

jak

Reply to
jakdedert
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There's a big difference between tinting tungsten etc and LED. Tungsten is continuous spectrum so a coloured filter merely reduces the output at that wavelength. Trouble with LED is parts of the spectrum are missing so you can't reduce others to boost what isn't there.

The last warm white LEDs I tried a few months ago were a bilious 'shade' of green. IMHO we're still a long way from LED being as 'kind' as tungsten for domestic use.

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    Dave Plowman        dave@davenoise.co.uk           London SW
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Dave Plowman (News)

White LEDs are blue emitting chips coated with a phosphor that converts some of the blue light to other wavelengths. It's unlikely that LEDs will ever have the smooth continuous spectrum that tungsten provides, but I do suspect they will eventually reach the quality of better fluorescent lamps.

Reply to
James Sweet

That's a very high standard. The better CLs can be used with photographic cameras -- film and digital -- and produce outstanding results. (I own several Lowel ego lights.)

Reply to
William Sommerwerck

I last bought about 8- 3 watt Luxeon's for a lighting project. I decided i didn't want a bluish tint, but I will try out some of the high powered warm whites. Less lumens and harder to get.

greg

Reply to
GregS

I've seen two types of warm white LEDs. One looked pretty good, and another had the icky tint another poster mentioned. I'm sure both depreciate towards less desireable color as the phosphor ages but I have no long term experience with the warm ones.

Reply to
James Sweet

Yes - fluorescent soft lights are pretty popular for filming these days. Have the added advantage of maintaining colour temperature pretty well when dimmed. Most simply don't realise the wide range of specialist tubes and base their poor opinion on the commonly available ones.

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    Dave Plowman        dave@davenoise.co.uk           London SW
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Reply to
Dave Plowman (News)

On Tue, 4 Mar 2008 16:11:57 -0000, "N Cook" put finger to keyboard and composed:

Adapt an LED from a solar garden light ???

- Franc Zabkar

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Franc Zabkar

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