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LED Dashboard bulbs

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Sautie
Rust Hunter
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Joined: 30 Jun 2010 10:54
Location: South Africa
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LED Dashboard bulbs

Postby Sautie » 28 Sep 2015 10:21

I have succesfully converted my exterior bulbs (all the Rear & theFront indicators)
I now want to do the dashboard.
Where can I buy the correct LED wedge bulbs in different colours?

trekcarbonboy
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Joined: 18 Oct 2010 15:38
Location: USA

Re: LED Dashboard bulbs

Postby trekcarbonboy » 18 Nov 2015 22:04

Superbrightleds.com
Craig '75 2.0 FHC

Sautie
Rust Hunter
Posts: 220
Joined: 30 Jun 2010 10:54
Location: South Africa
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Re: LED Dashboard bulbs

Postby Sautie » 19 Nov 2015 08:50

Thanks I got them from Superbright LEDS.
In going forward I have sorted out, (I think) the 4 mysterious bulbs. Why is there no description in either the Workshop manual or the Parts manual of the heater controls area next to the radio and hence the 4 bulbs that illuminate them?
Yes they are the same wattage as the 4 main instrument lights. However they have fancy spring loaded bayonet fittings. Fortunately I think I have found someone that can refit them to take wedges.

UKPhilTR7
TRiffic
Posts: 1931
Joined: 24 Mar 2005 12:52
Location: West Midlands, England

Re: LED Dashboard bulbs

Postby UKPhilTR7 » 10 Dec 2015 08:11

Hi guys,
What would be good is if we were able to give a list of the replacement bulbs (with numbers) and the shop where we can get them from.I would like to replace both internal and external bulbs with LED's and a list would help.
Image

dmtrmp6
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Re: LED Dashboard bulbs

Postby dmtrmp6 » 11 Dec 2015 11:31

All,
I uploaded a fairly detail post (including some updates in response to questions) on dash conversions, including bulb types and details for dimming control using a low cost (< $10) commercially available electronic variable pulse width dimmer module. The module fitted nicely in place of the original Lucas item or easily hidden elsewhere under the dash panel etc. PLEASE NOTE :( - due to the circuit design of this dimmer it does not work well when fully installed in our cars - I am working on a compatible replacement, so on/off only at moment.

Unfortunately the post series was caught up in the post freeze period associated with transfer to the new forum/website and despite some good effort from our moderators etc they were not able to be relocated.
Given a little time over the coming holiday period I will look at regrouping my thoughts and reconstructing the original information.
The illumination bulbs in the instrument cluster are known as type T10. Many varieties available, but recommend use of the Green corn cob style with a max of 9 led elements. This gives good light spread and not excessive bright when used at full brilliance. Anything bigger results in light bleed/overspill and distracting glare, but set them right and they are excellent plus dimmable smoothly all the way down to off. You need to remove the exisitng green caps which can be done from the front of the dash panel (also the bulb change) after partial disassembly (be careful) of the top cover, front lens and black gauge mask. You can also get more common end lit LEDs in variety of colours to use in the warning lights, indicator, high beam etc.
Do not use an LED in the chg/alt/ign warning light. This must remain an incandescent bulb as it forms key part of the alternator initial excitation circuit - LEDs are polarity sensitive therefore unsuitable as current must flow in both directions for correct alternator excitation. There also various styles better suited to the over radio console lighting, but these take a little more effort to install effectively. Rgds, DM in Oz

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