I've recently replaced mine. Also got off eBay for about 3 quid and it's not been a problem so far. Got mine in blue and it's nice and bright. Got 42-44 mm festoon. U will find the one thats already in there is abit smaller (36-38mm I think) but go for the bigger one and spread out the terminals slightly. That'll stop the bulb from spinning around as LEDs point their light in one direction and ur light will stay at its brightest. That's my opinion anyway.