Posted by Justin L. on September 12, 2017
This question is probably the #1 reason our beloved HIDextra customers call us. "What are capacitors? Do I need them for my HID kit install? Well, as with all things that are slightly more complicated than chopping wood, "it depends". So today, we're going to use the good old grammar school format of WHAT, WHY, WHEN, WHO, WHERE and HOW to best explain HIDextra capacitors.
HIDextra HID capacitors are essentially conductor devices (protected by an electric insulator) that are used to store additional electric charges
Capacitors are used in a number of cases, but the primary fix that it’s addressing is that some vehicles, based on their design, will “pulse” voltage to the HID kits
Capacitors should be used when installing HID kits causes the following issues.
These “pulsing” voltage issues tend to happen more often on newer model cars, cars equipped with auto sensing headlights, and those equipped with DRL (Daytime Running Lights). Some common car makes include Dodge, Jeep, Chrysler, Mercedes, BMW, Range Rover, and Audi. However, you should always check our vehicle fit guide to ensure whether you need a set of capacitors or not.
Why, at our HIDextra Accessories section of course!
Capacitors are probably the easiest HID accessory to install. They are simply an extra piece of wiring between your HID ballast and the plug that goes directly into your car's wiring (plug one side into the ballast and the other into the car wiring). Capacitors always come sold in pairs, so you want to make sure you install them on each side.
*IMPORTANT NOTE* There is one BIG caveat to this installation: HID capacitors MUST be installed with the correct “polarity." What does that mean? Simply put, it means “the red wire MUST match up with the red wire, and the black wire MUST match up with the black wire." The reason? It’s a conductive unit that has polarity much like a car battery charger. If you put the ends the wrong way, it’s going to cause the battery lines to fail. Similarly, if you install capacitors the wrong way, it may cause failure of the capacitors.
Which HIDEXTRA Kits already has these built in capacitors? Our 55w PRO Canbus HID Kit.