I had the catz ones in my taillights a long time ago.... Looked like a little dot... not good.

Daytime: http://ibadesigns.tripod.com/Civic/i...akelights2.jpg

Night time parking lights: http://ibadesigns.tripod.com/Civic/i...ge/LEDtail.jpg

Night time brakes:
http://ibadesigns.tripod.com/Civic/i...e/LEDbrake.jpg