christmas lights

I have a little experience with wiring after having to hot-wire my aftermarket radio in my car when changing it out, however I do not know how to fix this issue. The wires in the plug were loose and the lights were not turning on because of this, so i cut it off and figured it'd be as simple as...

Hi everyone, im an absolute beginner here and i was made aware that i could technically solder some parts of a circuit board together to achieve a consistent steady light on my christmas fairy lights, which currently need to cycle 7 modes before it gets to a steady mode. The issue is that i have...