When you install the HID on some car, and the computer alarm (or digital control such as some new BMW) noise, the light flash and flick continue, try a condensator on it to solve this,  some condensator can only use for specail car series

Just like: OPEL, BMW3, BMW5, some of Benzs...

But for some car, a normal condensator is ok, eg: Volvo,  Buick....

The condensator above is the normal one for Volvo and Buick

If you are not assure which condensator you need, tell us your car brand and model than we get the right condensator for you