CPC Subgroup
H05B 41/16 in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC
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 DC or by low-frequency AC, e.g. by 50 cycles/sec AC
2 direct subcodes
Child Classifications
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- H05B 41/18 having a starting switch
- H05B 41/20 having no starting switch