I ordered 3 sets of the festoon lights at £60 a set. Unfortunately 5 buds out of the 3 packs were not working. As the bulls are non replaceable, the lights are of no use to me. I contacted Cox and Cox straight way. I expected to be able to make a return and get a refund or a replacement. Was a little worried about taking a replacement, incase I would have trouble with the lights down the road. I was so upset by the reply from Cox. They tested the lights before they let the warehouse and all were working. I'm sorry but when I got them 5 buds were not working. To make. a long story short, I could get no were with Cox. Had to do a charge back on my card, in the end. I received faulty goods, it's my right to be able to send them back. So unfair, their customer care was non existent. Would not recommend.