Halfords can be great or grim, it is a bit of a 'try it and see' thing when problems arise. My battery failed after 10 months and of course the receipt went into hiding, but when I took it back to Halfords, they tested the battery, confirmed it was duff and then gave me a new one, no hassle. Brilliant. I then bought some glow plugs for a Citroen I had at the time, fitted them which was a damn nighmare, it took me 2 weekends to achieve completion, and after about a month the car would not start. Eventually, after getting very p1ssed off, I took it to my local garage to find out what the problem was. They immediately told me that 2 of the glow plugs were not working, and a third was weak. they replaced the lot with Citroen spec plugs and she was as good as new. I had the receipt this time and took them back to Halfords who supposedly sent the glow plugs off for testing, I had to keep chasing them to find out what was happening and they eventually came back stating that they may have been fitted to the wrong vehicle. This was proven not to be the fact as the part number when checked confirmed they were for a Citroen ZX. They then said that they may have been fitted wrongly ?? How ?? they are similar to fitting a spark plug except that the power lead is daisy chained and you could not connect up wrong due to there being no slack in the cable. It went on for about 4 months and I eventually gave up. So, they are OK for batteries, f***ing useless for glow plugs.....and with the sound of it, bulbs, expensive bulbs at that.