Panel Post Light. Compact design, just 3/4" x 1/2" (.25mm shaft diameter). 2 super-bright LEDs. Ideal for supplemental lighting to enhance instrument panels, circuit breaker panels and consoles. Substantially brighter than conventional instrument post lights, so one LED assembly can illuminate several instruments or a section of your instrument panels.
 
Same assembly from Aircraft Spruce is $17.80
 
Total Power Consumption 0.6 Watts
Operating Voltage 12~14.5 VDC
Current Draw 40mA
Beam Angle 120 degree
LED Quantity 2 LEDs
LED Type 5050 SMD
IP Rating Weatherproof IP65
Housing Color: Black
Dimmable: YES; Rheostat or PWM Dimmer 
Note: Not FAA/PMA approved. Intended for use in experimental aircraft only.