Grimes cockpit dimmable utility light, red/white.  28v becomes 12v with bulb swap.  Snap in base.  This is a $2800 light if you buy new from Grimes.  The base alone sells new for about $150 from Grimes. The absolute cheapest you can buy one of these out in the real world is $350.

 

This one is nearly new........$150

Grimes Cockpit Dimmable Utility Light

$150.00Price