I seem to remember an article on the tube that channels the light from the bulb. Maybe it was a Mercedes Source video, yes it was now that I think about it. He may have cleaned the tube or lined it with aluminum foil or something to get some brightness. Let us know how you solve it.
--- In diesel_mercedes@yahoogroups.com, Bogy Wan Kenobi <polespearbogy@...> wrote:
>
> Hi all:
>
> I decided to try to do something about the annoyingly dim panel lighting in my 300TD. To that end I got a couple of light sockets and "wired up" some super bright LEDs. I tested them on the workbench at 12 volts (regulated) and almost blinded myself. But when I put them in the sockets of the instrument cluster they were almost as dim as the warm glow normal lights. I took them back out and powered both a normal light and the LED light simultaneously with the same supply. I couldn't believe how bright the normal lights actually were. Which makes me ask myself - "What's up here?" It's too late and rainy to do any more investigating tonight. But does anyone know if there is a filter or light limiting apperature and maybe a diffuser between the bulb and the light outlet port at the top of the cluster? I don't believe there is any reason other than that to account for how dim these bulbs seem to be. I will also post the photos of the final product. I'm kinda
> proud of them. Look in the photo section in folder called
>
> "bogy's LED intrument cluster lights"
>
> Bogy
>
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