I welded mounting tabs on the canopy frame so I could add lighting. These BBQ competitions you're working before daylight and after dark so my guys needed light. I ask them to order 3 of these 12 volt Spreader LED Flood Lights and I would install them.
I terminated the Lites with marine grade Butt connectors and where I had dissimilar diameters in copper conductors I used Step-Down Butt connectors. If you look close at the connectors pictured the blue stripe inside the connector insulation designates the 14-16 gauge wire side where the other end is for 10-12 gauge wire.
I ran all the wire internally in the pipe as much as I could.
And tested the lites before pulling the trailer home.