I just upgraded interior lights in Outlander to LED ones and what a difference they make. They give luxurious look at night andbrighter then the stock ones. They are slightly bigger then stock, but they still fit. At $9.99 a pop they are expensive, but prior to them I used $4 ones in TSX and they were pretty dim. If you are looking for bright HID look get the first ones on the list:

http://autolumination.com/festoon.htm

 

My thread on interior lights had a place to get the bulbs for 6.99 IIRC. I really do like the new lights though, and they are worth the extra money for such a subtle difference.

 

I've tried cheaper ones too, but they were never were as bright as stock, those super Flux did the job. I didn't tell my wife that I changed the lights and that night when we she got into the car she was surprised by the brightness. I'll see if I can take some pictures for you.