Thanks. This will not be permanently mounted. Mostly for long trips where I often ride at night to eat up slab miles or get through major metropolitan areas.@NVDucati as for adding in an extra set of lights on the bike, if they are permanent then you really shouldn't require relays. Assuming they are LED (and usually are) you can simply wire them into the existing bike lights. Add a fuse if you wish but that's usually not required. My extra rear brake lights on the bike are tied in direct to the rear brake light. No relay, no fuse (other than the one for the normal brake lights.)
You'd only need relays for either a high draw addition or to isolate the circuit from the bike (which is what you want with a trailer.)
The mast is made for a baby stroller umbrella holder. I've used them for a camera mount in the past. Adjustable, sturdy and about $15.
