What is the ANSI Code?

An ANSI Code stands for the "American National Standards Institute." For most Metal Halide and High Pressure Sodium and Medium/Low Pressure Sodium bulbs, the fixture contains the "ballast" or starting mechanism that lights up the light bulb. (In incandescent, halogen, led and compact fluorescent light bulbs this starting mechanism or ballast is built into the bulb.)

The ANSI is an organization that regulates or agrees upon certain standards for each of the HID light bulbs that require a ballast to ignite the bulbs. When using a bulb that requires a ballast the ANSI code must match for the light bulb to function properly.

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