A22.214.171.124 Alternate Lighting Sources
Metal halide lamps that are:
- Pulse start or ceramic served by a ballast that has a minimum efficiency of 88 percent or greater or
- Pulse start that are 320 watts or smaller, are not 250 watt or 175 watt lamps and are served by a ballast that has a minimum efficiency of 80 percent.
Where ballast efficiency is the measured output wattage to the lamp divided by the measured operating input wattage when tested according to ANSI C82.6-2005; or
Neon or cold cathode lamps with transformer or power supply efficiency greater than or equal to the following:
- A minimum efficiency of 75 percent when the transformer or power supply rated output current is less than 50 mA; or
- A minimum efficiency of 68 percent when the transformer or power supply rated output current is 50 mA or greater.
Where the ratio of the output wattage to the input wattage is at 100-percent tubing load; or
Light emitting diodes (LEDs) with a power supply having an efficiency of 80 percent or greater; or
Exception: Single voltage external power supplies that are designed to convert 120 volt AC input into lower voltage DC or AC output and have a nameplate output power less than or equal to 250 watts, shall comply with the applicable requirements of the Appliance Efficiency Regulations, Title 20.
Electronic ballasts with a fundamental output frequency not less than 20 kHz;
Exception 1 to Section A5.209.5: Unfiltered incandescent lamps that are not part of an electronic message center (EMC), an internally illuminated sign or an externally illuminated sign.
Exception 2 to Section A5.209.5: Exit signs. Exit signs shall meet the requirements of the Appliance Efficiency Regulations.
Exception 3 to Section A5.209.5: Traffic Signs. Traffic signs shall meet the requirements of the Appliance Efficiency Regulations.