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Digital Lumens Announces Integrated Daylight Harvesting in Its Newest Industrial LED Light Fixtures

Built-In Daylight Sensors Can Drive up to 50% Additional Lighting Energy Savings in Industrial Facilities With Available Ambient Light (November 16, 2011)

BOSTON, MA -- (Marketwire) -- 11/16/11 -- Digital Lumens, developer of the market-leading Intelligent LED Lighting System, today announced daylight harvesting capabilities in its newest LED lighting fixtures and LightRules™ control system. The new fixtures include integrated light sensors, which assess available ambient light and automatically adjust light output to desired levels. Managed by new LightRules software, the daylight harvesting has the potential to deliver an additional 50% energy savings, depending on the application.

A standard part of the new Digital Lumens 18,000- and 26,000-lumen highbay LED fixtures (see separate announcement), the daylight sensors measure available light from windows or skylights and intelligently and gradually adjust the fixtures' light output to meet desired light levels. LightRules reports on the amount of energy saved via the use of daylight harvesting, providing key feedback for facility management.

The integration of daylight sensors into these new fixtures offers:

  • Gradual light balancing to ensure even light levels and smooth response to changing daylight levels throughout the day;
  • Granular control over individual fixture behavior to maximize energy efficiency -- in contrast to bolt-on sensors, which manage groups of fixtures; and
  • Cost-effective daylight harvesting because the Digital Lumens daylight harvesting capability doesn't require the purchase and integration of additional hardware to take advantage of ambient light. In addition, because the system is remotely managed via LightRules, it's fast and easy to adjust settings without using a lift.

"Extending the Digital Lumens Lighting System to intelligently respond to the environment and deliver greater energy efficiency has always been an explicit design goal for us," said Brian Chemel, Digital Lumens's Co-Founder and CTO. "Just as we have with occupancy sensors, integrating daylight sensors directly into the system delivers much finer control, greater flexibility and substantially better energy savings than after-market alternatives. With our distributed, intelligent system, lighting is becoming a well-managed, controllable resource that is delivering new value to customers while using much less energy."

Digital Lumens continues to help industrial customers drive energy efficiencies, providing 100% of the light for 10% of the energy cost. The Company's solutions have been proven with more than 100 large-scale facilities driving 33 million kWh of total annual lighting energy savings.

About Digital Lumens
Digital Lumens develops Intelligent LED Lighting Systems that are proven to reduce industrial customers' lighting-related electricity expenses by up to 90%. With this System -- smart lights, wirelessly networked together and centrally controlled -- the company is defining a new class of networked LED lighting that maximizes both delivered light and energy efficiency. Digital Lumens has been recognized as a 2011 World Economic Forum Technology Pioneer and a 2011 Global Cleantech 100 Company. For more information, please visit

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Juli Greenwood
(781) 672-3137
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Allison Parker
Digital Lumens
(617) 723-1200
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