Led fed up with blue! Barghhg

[vaspen]

2000 c230 my cluster uses 27 t5 bulbs
I have about 15 in led all other indicators are dim florescent
White works fine, led bulb
Tried blue led 3 different style led bulbs and I just won't illuminate
I'm even making my own blue leds! And theyou still won't spread light on the gauges but the bulb is lit up normaly

[vaspen]

Only thing that lights up blue the the inner kph thing ( usa car)

[Chisel86]

I think it primarily has to do with the inherit wavelength of the blue spectrum.