Ready-made wiring harness and relay kit makes it easy to add relays to a motorcycle headlight. Adding a relay can improve headlight output, reduce load on switches and allow higher wattage bulbs to be ...

See Below: Unique new Comagination dual headlight modulator includes a solid-state relay! Give me some metal and a few tools and I’ll build anything. But when it comes to electricity, I’m dumbstruck.

Last month we discussed the basics of your car's 12-volt electrical system with the goal of understanding enough to trace problems to a particular electrical component. This month we're going to delve ...

When driving at night or in foul weather, you need your headlights. Unfortunately, they fail sometimes, and you need to replace them. Without them, you might not be able to see, and it’s undoubtedly ...

When building a car, there are a lot of decisions that need to be made, sometimes even before you turn a single nut. Is it going to be a restomod, stock restoration, strip-only, Day Two machine, or ...