Metal halide lamp, the arc discharges through the combined vapors of mercury and certain compounds of iodine. The halide compounds help strengthen yellows, greens and blues, so the overall color rendering of metal halide lamps is green-white.
Reds and oranges appear dulled. Phosphor coatings on the bulbs of mercury vapor
and metal halide lamps can improve color rendering and provide light diffusion.
Once a mercury vapor or metal halide lamp starts, voltage drops to lower operating voltage levels.
400w metal halide ballast, also referred to as HID lighting (High Intensity Discharge) gives off a nice brilliant color of white light. In contrast, high pressure sodium gives off a yellow/orange color of light.
Metal halide high bay and very low bay lighting is often noticed in gymnasiums, arenas, grocery outlets, and so forth. because it presents a real white color that resembles daylight.
Gymnasium lighting needs a light that provides a sizable volume of light and involves incredibly very little servicing.
A resistor or thermal switch in series with the starting electrode now blocks voltage to the starting electrode so it does not arc and burn out during normal lamp operation.
The arc tube of an HPS lamp is too narrow to house a separate starting electrode.
Since there is no starting electrode in an HPS lamp, a much higher start-up voltage is required to establish an arc between the wide gaps of the main electrodes. This low-power, high voltage spike ranges between 2500 and 4000 volts. This voltage spike or pulse is provided by a starter pulse circuit board separate from the HID ballast
400w metal halide ballast for MH lamps
A 400w metal halide ballast is a device used to regulate the voltage and current supplied to a 400-watt metal halide lamp. Metal halide lamps are a type of high-intensity discharge (HID) lamp commonly used for outdoor and commercial lighting applications.
The ballast is an essential component of the metal halide lighting system and is responsible for starting and maintaining the lamp’s arc. The ballast operates by providing a high voltage pulse to start the lamp and then regulating the current to maintain a stable arc.
When selecting a ballast for a 400-watt metal halide lamp, it is important to choose a ballast with the correct voltage and wattage rating. In this case, a 400-watt metal halide ballast would be the appropriate choice.
There are two main types of 400-watt metal halide ballasts: magnetic ballasts and electronic ballasts. Magnetic ballasts are the traditional type of ballast and operate using an electromagnetic core and coil system. Electronic ballasts, on the other hand, use solid-state components to regulate the current and voltage.
Electronic ballasts are generally more efficient and have a longer lifespan than magnetic ballasts. They also operate more quietly and produce less heat. However, they are typically more expensive than magnetic ballasts.
In summary, a 400w metal halide ballast is an essential component of a metal halide lighting system. When selecting a ballast for a 400-watt metal halide lamp, it is important to choose a ballast with the correct voltage and wattage rating, and to consider the type of ballast that will best meet your needs, whether that be a magnetic or electronic ballast.