CPC Subgroup
H05B 41/24 in which the lamp is fed by high frequency AC (H05B41/26 takes precedence)
Full Title
Circuit arrangements or apparatus for igniting or operating discharge lamps (structurally associated with the discharge lamps H01J61/54, H01J61/56) > Circuit arrangements > in which the lamp is fed by high frequency AC (H05B41/26 takes precedence)
1 direct subcode
Child Classifications
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