The best method I've seen people do so far is to paint the needles to glow under a blacklight, and then use a blacklight for one of the lights that shines on the gauge face.
I used ion needles on the fuel and oil and temp guages. with leds from superbright leds.com, and I have red in the background. and uv, showing on the faces. it looks cool.
I used ion needles on the fuel and oil and temp guages. with leds from superbright leds.com, and I have red in the background. and uv, showing on the faces. it looks cool.
What kind of UV light did you use ?
__________________ 1994 Camaro Z28 - Full show car
1998 Saturn SL2 - Slammed 4 1/4"
I replaced the bulbs showing on the dash with leds from superbrightleds.com theyer really cheap. They are black lite in color. I did have to shave a little off where the lite shines thru so that more lite could be seen.
Gauge Needles 
Linear Mode
