China manufacturer of magnetic ballasts for metal halide flood lights & hps flood lights

The most common and simplest type of HID ballast available. The only purpose of this type of ballast is to limit the current being fed to the lamp. Reactor ballasts can only be used when the line voltage is greater than the lamp starting voltage.

Reactors are the most compact, economical and most efficient ballasts because their job is to perform only one function. However, reactor ballasts are not recommended where power fluctuations are greater than +/- 5% because they offer little regulation capability. 

Ballasts are required for many kinds of lamps which build up resistance the longer they are lighted. These lamps, including fluorescent lamps and HID lamps, would continue to draw more and more current the longer they are lit. Eventually the bulb overheats and could possibly explode.

The probe start metal halide ballast kits are factory new and come complete with ballast core, capacitors and all mounting hardware. Available in 50W, 70W 100W 150W, 175W, 250W, 400W, 1000W and 1500W kits. For wiring instructions.

Metal halide lamps are one of three types of high intensity discharge (HID) lamps in general use. The other two types are mercury and high-pressure sodium lamps. HID lamps have bright light output making them perfect for outdoor lighting.

By adding a capacitor (typically dry type) across the line, the power factor of the reactor system can be increased to be better than 90%. Adding the capacitor drops the required input current for starting and operating conditions down to as low as 50% lower than is needed for the normal power factor reactor system. This allows for more lamps and ballasts per circuit using the same wire gauge.