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That is exactly how the current US law works. See also: https://en.wikipedia.org/wiki/Energy_Independence_and_Security_Act_of_2007#B._Lighting_Energy_Efficienc

by jsight 10y ago

That is exactly how the current US law works. See also: https://en.wikipedia.org/wiki/Energy_Independence_and_Security_Act_of_2007#B._Lighting_Energy_Efficiency https://en.wikipedia.org/wiki/Energy_Independence_and_Securi...