Thanks to anyone in advance for any insight you can offer. I recently bought some plug-in LED puck lights that run on 120V (they are quire bright at 650 lumens). They have the typical stranded 18 AWG in both the power cord and linking cables provided. I am looking to extend the length of the linking cables by butt splicing 14 AWG to whatever length I need. I have leftover 14 AWG, so that is why. I feel confident doing that as long as the connections are secure. My question is this. I am looking to hardwire these puck lights to tap into an existing switch that currently controls 1 fixture in my ceiling. The power will run from the switch, to the existing light fixture, and then to the puck lights. The existing fixture uses 14 AWG. If I run a line from that fixture using my 14/2, can I then butt splice the 14 AWG to the 18 AWG the fixtures use? The splices themselves would not be behind walls. As mentioned before, these are plug-in lights. My grasp of electricity is limited, so my apologies. I'm guessing the pronged plugs on such 18 AWG fixtures convert the full 15 amps of electricity from the outlet itself down to a manageable current for the fixture to prevent overheating? Is this the case? Again, thank you.

I have a main panel on a ext. wall for the Mains hookup. There are several 120 breakers. These service a number of 120v receptacle apparently in parallel configurations. There are 2 240v breakers - 1 for the stove, the other for the dryer - all single receptacles.The dryer is close to the garage. I want to have a 240v outlet in the garage. Would it be reasonable to add a 240v receptacle / extension to the dryer's line, like the 120s in parallel fashion by passing an additional line from the mains or putting in a subpanel. Thanks!