Always had trailer light issues in the past.
I've been using magnetic tow lights for quite a few years now, trouble free.
Only takes a minute to remove them when launching and just a bit longer to put them on.
Reason for the extra time to re-install is because I put plastic cable ties in a criss cross patters around the magnetic base and secure to trailer frame.
If you go over bumpy roads, railway tracks, etc, they could be shaken loose and fall off. The cable ties get snipped off at the launch and thrown out.
I install new ones before leaving the launch. Only cost a few dollars for a pack of 100.
Problem solved and the removable lights can be used for multiple trailers.