I swapped out all my interior 921 light bulbs for LED's.
Now I'm a happy (and cool) camper!
I have added some photos below where I had one original bulb in one side of the light fixture, and an LED replacement in the other (for comparison purposes).
The replacement bulbs were $9.95 each.
It is as easy as changing a light bulb. No polarity checks, no adapter sockets, no voltage changing resistors (they are built-into the LED bulb).
Not cheap when you replace all 12 bulbs, but definitely worth it in my opinion.
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