Today , after many tests , I have replaced the original leds with warm leds ( 2700 k °)
To avoid shadows I have used sand paper # 240 on the case of leds to make them opaline .
There are only two little shadows due to the 2 screws of the instrument .
The result is enough close to original nut bulbs .
In case you want change color ( green , blue , amber , etc .)
I suggest , after making leds opaline and starting from original white leds , to paint them
with glass paint or trasparent paint ( Tamiya colors are good ) .
I hope this method would be useful for everyone .
Ciao
Marco
To avoid shadows I have used sand paper # 240 on the case of leds to make them opaline .
There are only two little shadows due to the 2 screws of the instrument .
The result is enough close to original nut bulbs .
In case you want change color ( green , blue , amber , etc .)
I suggest , after making leds opaline and starting from original white leds , to paint them
with glass paint or trasparent paint ( Tamiya colors are good ) .
I hope this method would be useful for everyone .
Ciao
Marco