When talking about lighting systems, a ballast is a device that regulates the current and provides sufficient voltage to the lamps. A ballast makes sure that not too much or too little voltage is passed to the lamp. It maintains the optimum electrode temperature which helps in making the lamp last as long as possible. Ballasts are used in fluorescent lamps, most commonly. A ballast can be a simple or complex device. It can consist of a resistor, inductor and capacitor, or it can be one of the electronic ballasts used in HID lamps which are quite complex. Quality is another thing that is quite important with ballasts. To take a look at high-quality ballasts, you can visit eWorldTrade. Our business to business portal is a place where you can meet buyers and sellers from around the world and trade with them freely. For any inquiries, feel free to contact the respective manufacturers of the products you find your interest in.