I decided to change all the light bulbs inside my 5er to led bulbs for the few times I go boondocking. I replaced most of them over the last couple of days and am very pleased with the bulbs I used!
Amazon.com: 2pcs 42-SMD T15 12V LED Replacement Light Bulbs + STICKER 921 912 906 - White: Automotive
These bulbs are as bright, actually a little brighter, and use 1/10 of the power. .2 amps per bulb compared to 2 amps each of the standard bulbs. Not only that but the color is excellent which was important to me because of the number of photographs I take.
Just thought I would mention this for those that are considering doing this as well. Oh, and they will last much longer than the standard incandescent automotive type bulbs. That is always nice cause some bulbs can be a real pain to get to.