Originally posted by Stylin55_oh:
the bulbs on that car are these
polarg 5w
polarg has an m16 dome light bulb.. i dont know what kind of blub our cars take
Found it. 
Polarg M28 Super White Dome Light 10W
Factory bulb is 6418. I'll be getting the Polarg instead of the LED type from superbrightleds.com. LEDs can be a pain since the light doesn't always spread out evenly. The Polarg is just a standard type of bulb. 
EDIT: Just found on the a Focus forum, someone was running them there also and loves it. Same M28 bulb. These can also be installed into the dome and map lights. Factory is 6411 and Polarg shows it on the list for the M28.
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