INITIAL COLOR OF METAL HALIDE LAMPS
Metal Halide lamps go through an initial color stabilization period—how long it takes after installing the lamp for the color to “settle in”. This is a property of all metal halide lamps, including Superior Lamps.
Metal Halide lamps are filled with different halide salts. These salts vaporize in the arc tube, and it is the final combination of the different salts that produces the characteristic white light.
When a new Superior Lamp metal halide is first operated, it can sometimes appear “off-color,” yellow or green. It can also sometimes appear to change color for a moment, and then change back. The reasons these events happen is because the different halide salts in the arc tube are not yet evenly distributed or fully vaporized, and are thus unable to create the bright white color that the metal halide is known for. Hence a “burn-in time” is necessary. Once a Superior Lamp metal halide has been operated for about one hundred hours, provided it is on a good ballast, it should stabilize and reach its desired color, the familiar brilliant white.
Superiorlamp.com
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