Technical index Type wq-dqf1520wq-dqfk1520 Specificationsdn1520dn1520 Working voltagedirect current 2.76v direct current 2.76v Working current_50ma_80ma Internal resistance1616 action time11s4s Medium temperature_90up to110_90up to 110 Working pressure_1.6mpa _1.6mpa Working lifeª2 million timesª5 million times Material usedPolycarbonate case ect.