... 4.life cycle:1,000,000 cycles Push-pull Type Solenoid, frame solenoid, 12V DC :1.External size:20*16 ... insulation resistance:100ohm6.insulation class:b f h .type:push -pull type Our company believes the principle: the best ... you are in charge. let us know the voltage, type, size and other requirements of solenoids you need, ... return and replace or refund. Push-pull Type Solenoid, frame solenoid,12 V DC