State energy codes in the United States, which must be at least as stringent as the ASHRAE/IES 90.1-1999 standard, require automatic shutoff of lighting in commercial buildings greater than 5,000 ...
Lighting accounts for an average of 35% of the total energy in a building and upgrading to LEDs can provide more than 50% in energy savings. If you add a control system, this can provide an additional ...
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