I connected my light to my 4x4 and it doesn’t work. Now what?

Several items could be preventing the lights from working properly. The following can help you in troubleshooting and working out the diagnosis. Try connecting the wires of the lights directly to a fully charged car battery. If the light works then there is a problem between the battery connection and the light. Potential problems can include; a faulty switch, faulty relay, insufficient wire gauge and improper grounding.

When I connect my light directly to my battery, it is at full brightness, but when I use a long cable to install it, the light is dim. What is wrong?

You need to make sure you are using an appropriately sized gauge wire for your installation. This is especially important if using a long wire from the battery to the light installation. If the wire gauge is too small, there will be significant voltage dropped across the wire, preventing the light from powering up fully.