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See Chinese contents: GB 19043-2013 GB 19043-2013: Minimum allowable values of energy efficiency and the energy efficiency grades of double-capped fluorescent lamps for general lighting service
This Standard specifies the energy efficiency grades, energy efficiency limits, evaluation values of energy conservation, and test methods of double-capped fluorescent lamps for general lighting service (Hereinafter referred to as: double-capped fluorescent lamps). This Standard applies to the following two operating types of lamps: preheating cathode lamp that can work in AC power supply frequency lines with starter, and can work in high frequency lines; and preheating cathode lamp that can work in high frequency lines.
