One of the most common problems with Hid Car Xenon Lights is that they are inconsistent. They might fail to turn on every time or fail to turn on at all. They might also flicker.

　　The biggest problem with halogens is that 80% of the energy that passes through them is dissipated as heat rather than light. This makes them extremely inefficient.

　　Xenon bulbs are different. The bulb is not a filament, but an envelope that encapsulates the xenon gas. This gas, when excited with enough electricity, bursts into beams. Under the right circumstances, they are more efficient and last longer.

　　The problem is that the voltage required to "fire" a xenon bulb is much higher than what a typical vehicle can produce. Most vehicle wiring harnesses run on 12 volts, but it takes a whopping 18,000-30,000 volts to ignite a xenon lamp. Once ignited, it requires much lower power—about 90 volts—to keep the reaction going. When the bulb is powered off, the reaction stops, and the HID stops emitting light. So how do you get your vehicle's 12-volt system to produce 1,500 times the voltage?

　　Ballast. Each HID upgrade kit comes with a ballast system. A ballast is essentially a large capacitor; it stores voltage from the vehicle's systems and can be suddenly discharged to ignite the arc needed to initiate the xenon reaction. Once ignited, the ballast provides a trickle of power at precise levels to keep the light running without fluctuations or low levels. At the same time, the ballast acts as a converter from direct current (direct current, from a battery) to alternating current (alternating current, like your home system). This means that the current flashes back and forth, and its rate must be controlled.

　　Haining Suez Car Lights Co., Ltd. are LED car headlights suppliers, the main products are H7 car bulbs, etc. Welcome to consult!