The U.S. Department of Energy (DOE) has issued a pre-publication Federal Register notice of proposed rulemaking (NOPR) pertaining to test procedures for general service lamps (GSLs) proposing several clarifications. Specifically, DOE proposes: to clarify that GSLs must not be tested as colored lamps, GSLs that can operate at multiple correlated color temperatures (CCTs) be tested at [...]















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