UK Market Only.
Part Number- MMDUALLED
These clever little LED bulbs 1157 fitting offset pin will enable you to show a white light on park light i.e side light and amber light when turn signal i.e indicator so in short if you have a white lense to save fitting new headlamps you can use this exsisting bulb to be uk compliant.
just to recap when the car side lights are on the bulb is white. When indicating the bulb is amber.
Please be aware if you are fitting to a 65 Mustang with a one tel tail green light on dash you will need to re-wire this bulb holder