The electric side mirror switch illuminating lamp on my 2000 Buick Century is burned out. It is a tiny “grain of wheat” incandescent, soldered onto the circuit board. Might anyone know what the milliwattage of these lamps are so I could order some on Amazon.com?
Why not just replace the switch?
It’s probably about 1/10 watt. Look at the bulb carefully with a magnifying glass, for then take a look at this link, maybe you can spot the exact replacement part. It’s probably works on 12-14 volts, so focus on miniature incandescent bulbs rated for that voltage and sub-1 watt.
As posted above, the method most likely to succeed is to simply buy a replacement switch. If you don’t want to pop for a new part, you can probably buy one used from an auto recycler.