DOE Revises Report on Dimming LEDs with Phase-Cut Dimmers

The U.S. Department of Energy (DOE) has revised the October 2013 report,
Dimming LEDs with Phase-Cut Dimmers: The Specifier’s Process for Maximizing
. The report includes updated information about the LED lighting
and controls installed at the Burden Museum in Troy, New York. When the
original report about the GATEWAY demonstration was first published, the LED
lighting installation is a GATEWAY project that was still in construction when
the original report was published.

The lighting designer had to recheck the 18-month-old specifications because
of the project delays. Several LED products had been discontinued or driver
design changed, or the chip generation changed. Some product makes and models
had to be changed.

Therefore, the type of compatible dimmer or the number of lamps or
luminaires that could be dimmed on a single dimming zone had to be changed. The
museum installed the lighting and controls in early 2014. The controls
manufacturer collaborated closely with the lighting designer and electrical
engineer to ensure that all the dimming circuits are fully compatible. For this
reason, the process of checking phase-cut dimmer compatibility with LED
products specified for each dimming zone worked very well.

Luxeon High Power

Despite adding time to the design process, the recheck and adjustments to
the dimming specifications just before bidding on and ordering the LED lighting
ensured that none of the dimming circuits produced erratic or unexpected
behavior once installed.

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