Do I need to splice these into my existing trailer wiring, or is there a connector?

Mounting method and connector type are not specified — test-fit the assembly against your trailer's wiring harness before committing to any splicing or adapters. You may need standard trailer connectors depending on your setup.

Will these work if my trailer is already wired for lights?

Yes, these are 12V rated and designed for standard trailer electrical systems. If your trailer already has working wiring, these lights should integrate into that circuit.

What's the return process if these don't fit my trailer?

Contact support directly with photos of your trailer's light mounting area and current wiring setup. They'll confirm fitment before you commit.