Originally Posted by
snoop69
Many,many moons ago reg plate lights were not an mot requirement but required by law. Check if they are still required. May give you a bit of time to fix if not needed on the day. *EDIT* just checked and they are required!
They are 100%!
OP, can you test the bulbs on a battery, as you don't have a meter?
I know you say they are new, but it may be they are getting blown etc when connected, you need a meter really or a test light, such as the bulbs once you have confirmed they are good, by doing as i say above, you can then verify you have power there.
Martin