Today I burned the lamp inside the tachometer.I have mount instead of normal bulbs, SMD leds one T10/5 in tachometer and two T10/5 in speedometer.The results were 100% increase in clarity and brightness especially during night driving.Τhis is how it looks but the photo is not so good:
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And this is the type of smd led that i have use:
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good to know. thanks for the info :)

I fitted them in the high level brake light on my car a while back when all of the original bulbs went at the same time (never did work out why). They have been excellent, bright, and they still work.