I've got a 100W 15V Volt system mounted inside my garage with 30W of load from 100% LED lighting. I made a mistake of using the Volt direct-bury wire along the interior garage walls. I feel no heat in any wires while the lights are on. But, I'd like to make necessary corrections to be safe and maybe even code compliant. I do have an electrician coming and I'll be sure to ask them to check things out, but in the mean time I'd like to hear what other folks have done to wire through interior walls. Are the Volt 100W transformer and LED lights considered Class 2 limited power devices? Any wiring advice to go through garage wall joists and then out through wall to a wall-mounted down light? Is there a code-compliant 14/2 wire type that is suitable for interior use? It seems overkill to use Romex NM because of its unused ground wire. Are junction boxes necessary where wire splices are done? Is conduit necessary for the 5W LED light's wire to go from outside a wall to the inside? Thanks much.