A metal halide lamp is an electrical lamp that produces light by an electric arc through a gaseous mixture of vaporized mercury and metal halides compounds of metals with bromine or iodine it is a type of high intensity discharge hid gas discharge lamp.
Metal halide lamp ignitor circuit.
Once a new lamp is installed the metal halide bulb will light and come up to full brightness.
Pulse start metal halide ballasts provide the proper combination of open circuit voltage and high voltage pulses to start the lamp.
Gas discharge lamps an electric lamp.
Although metal halide bulbs are long lasting still they wear out.
So once these occur with your metal halide lamp getting a replacement bulb doesn t have to be your first step.
Ansi code american national standards institute ansi code that indicates the electrical operating designation of the lamp which must match that of the ballast.
The pulse is provided by a specially designed ignitor or starter that is used in conjunction with the ballast.
This peak voltage along with the ignitor when used is used to start the lamp and control the lamp current crest factor typically 1 60 1 65.
The metal halide and high pressure sodium ballasts also incorporate wave shaping of the open circuit voltage to provide a higher peak voltage than a normal sine wave.
Developed in the 1960s they are similar to mercury vapor lamps but contain additional metal halide compounds in the quartz arc tube.
Ballast a device required by electric discharge light sources such as fluorescent or hid lamps to regulate voltage and current supplied to the lamp during start and throughout operation.