WarDamnEagle
SILVER Star
Based on my measurements, I think these are R261 Festoon Bulbs:
R261 12v 5w 8x26mm
If you want the light brighter than 5w equivalent you will have to go LED.
R261 12v 5w 8x26mm
If you want the light brighter than 5w equivalent you will have to go LED.