In May, UL published the Sixth Edition of ANSI/UL 1993, dated May 17, 2024. UL 1993 is the most important safety standard for lamps / light bulbs. The standard covers both self-ballasted lamps and self-ballasted lamp adapters rated 120-347VAC nominal for connection to screw-base, pin-base, or recessed single contact (RSC or R7) lampholders. These devices [...]















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