1. Trailer Lights
Ground wire. The white wire is the ground wire, and with most trailers would be attached to the frame, however with the Boler being fiberglass this does not create a grounded body. I have purchase a trailer wiring kit and a white wire to run with it for the ground wire, this solves the ground issue, and still makes it easy to pull the trailer off the frame if the need arises.
Marker Lights. These lights are not very expensive, and is more a matter of taste. I have gone with the smallest LED ones I could find. The Boler is narrow enough you should not need the 3 marker lights on the back. Red markers go on the rear sides, orange on the front sides.
Taillights. The originals can be hard to find, and usually a mater of sourcing them used. I have found 7″ LED transit lights at Princess Auto that fit great. They are much brighter, and have a modern look. I have also seen an LED bulbs added to the original tail lights.
Both trailers I have had were 4 pin connection. The colors Line up as follows
White Wire – Ground Wire (this goes to all lights)
Brown Wire – Running lights (this goes to all lights)
Yellow Wire – Left Turn signal
Green Wire – Right turn signal
The brake lights work automaticly with these wires. If you tow vehicle shares turn signals with brake lights you can tap into the tail lights, if they are separate you need a tail light converter to wire you tow vehicle.
2. Interior Lights
I have always removed all regular lights and 12 volt lights, replacing them with 12 volt LED lights. With the brightness of LED lights I don’t see any benefit to running two different systems. This is simpler, lighter and saves room.
LED lights can be purchased anywhere, I find Walmart has had some of the nicest lately for the best price, but this changes over time.
I will also add battery powered LED lights to places where running a wire would mess things up.
I have also seen LED bulbs available for the original light fixtures.
3. 12 volt system
Both trailers I have had to date had no electrical 12 volt electrical system, so I no very little about what it is supposed to be. So instead I will share the solution I found.
The electrical system requires a few parts to convert power and charge the batteries, this all takes up space and cost too much money. So instead I bought a jump pack, it comes with the ability to charge it on any standard outlet, has a battery that can be recharged many times, depending on the one you choose has a long list of options available.
In the trailer I added a fuse box, one I picked up at princess auto and another I got out of an old camper. A light gauge wire to reduce the draw. I then wired in usb outlets, computer fans and LED lights. I also added a solar panel to keep it all charged.
The above kit cost less than a $100, and with our power us we have never ran out of power. On occasion we have used the usb port to charge tablets and cell phones, as well as run a DVD player. With that the battery did fall below half, so if that use was normal I would want a larger battery and solar panel.