One of the things that bugged me a bit was that Ford chose to equip my Badlands with LED lighting everywhere BUT the taillight turn signals, brake lights, and backup lights. So today I took care of that and changed out the bulbs with LEDs:
For those are interested, the LED Bulb types you'll need are as follows:
Turn - 921 Amber
Brake - 3157 Red
Backup - 7443 White
Installation was a snap. Changing out the bulbs is well documented in the owner's manual but all you need is a 10mm nut driver or socket wrench. Always be careful when working the housing tabs off of the studs (you REALLY don't want to break one of those) but the whole change-out took me less than 15 minutes.
I used bulbs from Diode Dynamics (www.diodedynamics.com) as they are an American based company and the quality of their products as well as customer support are outstanding (3 year warranty, but I've had them in my Fiesta ST for nearly 6 years now without a failure). But for those on a budget there are admittedly less expensive options out there.
While it's hard to see in the daylight pic, the backup LEDs are probably the biggest improvement in the cars I've put them in, with a noticeably brighter and whiter light than stock.