If a sink leaks water when the nozzle is fully closed, you have a leak.
Or in this case, your switch isn’t fully disconnecting.
Or you really screwed up and wired it backwards and have a short.
If the light bar has a cheap piece of frap switch, upgrade to a high quality switch, put that in the circuit, and leave the Crap one to on… that high quality switch is now your on off and if done correctly, won’t drain.
I am a mechanic but this is just information and is in no way a guaranteed solution.
If a sink leaks water when the nozzle is fully closed, you have a leak. Or in this case, your switch isn’t fully disconnecting.
Or you really screwed up and wired it backwards and have a short.
If the light bar has a cheap piece of frap switch, upgrade to a high quality switch, put that in the circuit, and leave the Crap one to on… that high quality switch is now your on off and if done correctly, won’t drain.
I am a mechanic but this is just information and is in no way a guaranteed solution.