Fluorescent paint lights in the dark on influence of blue or UV light. To get effect like on the photos below you will have to use UV diods that will light on needles from above.
This paint allows you to get effect of lighting in the dark objects. Great to use on scales needles and other elemnts as...
Needles lighting kit - 2x UV diode, Fluorescent Paint
Inverter is an power supplier, without it plasma gauges are not going to work - you can plugin to it 5 plasma dials at the same time. That is voltage converter, which changes 12V static voltage to 100V 400Hz.
Civic 91-95 aluminum gauge rings, price includes 3pcs
Indiglo plasma gauges and heater control panel can be connected to the same inverter.