Bulb Schematic Wiring
I am wiring in H4 bulb plugs on an '87 930 so I can use H4 Headlights in this car. The '87 cars came with DOT H5 headlights which I do not like compared to the much better focused Euro H4 lights.. I know which wires in the car do what from a test light, but I do not know which terminals on the back of the H4 bulb are ground, high beam, and low
CFLs for the home have a built-in ballast at the base of the bulb. Commercial CFLs use a separate ballast. Ballasts have a wiring diagram to show how they connect to the lampholders. There are four basic types of fluorescent ballasts:
Wiring Diagram Finder. Find wiring diagrams for your WorkHorse, WHAM, or LongHorse ballasts. Select your lamp type from the list below; Select the lamp quantity and wattage
Typical Trailer Wiring Diagram and Schematic. These 2 wire diagrams fit the needs for most trailers. The image above shows a single axle trailer, and the next image shows wiring for Tandem Axles. Only the (blue) brake and (white) ground wires are different. Extrapolate the same expansion for additional axles.
Wiring a 3-way lamp is a simple matter of connecting the 3-way switch's two switched live wires (frequently red for the low-wattage circuit and blue for the medium-wattage circuit) from the switch to the two live terminals on the 3-way socket.
AutoZone Repair Guide for your Chassis Electrical Wiring Diagrams Wiring Diagrams