Participate in a field test for high-efficiency troffer lighting

50% of all commercial fluorescent lighting fixtures are recessed troffers in 1'x4', 2'x2' and 2'x4' configurations, in operation for more than 10 hours a day on average and collectively consuming more than 87 TWh of electricity annually.

The Lighting & Electrical team supported the market introduction of high-efficiency troffers by developing a specification that allows for high-efficiency light-emitting diode (LED) and fluorescent technologies for all troffer products. Potential savings from applying the specification range from 15-45% on a one-for-one basis and up to 75% with the use of controls.

The specification was updated in April 2013. Updates include raising efficacy, lowering minimum light output for LEDs and fluorescents, and adjusting spacing criteria to accommodate new technology distributions.