... , yellow, blue12. Rated voltage: 6V, 12V, 24V, 110V – AC/DC; 20V, 380V, 440V/AC Main technical parameters ·power frequency withstand voltage: 2.5 ... KV (ac effective),1min·insulation resistance ≥ 2MΩ·ac lamp allows voltage fluctuation ± 20%·continuous working life ...