It able to convert control signals from the handset into operating voltage for the actuator OK3017 controller Can control 1 or 2,3,4 actuatorsExtremely compact design Input voltage: 220-240VAC,50Hz/110-120VAC,60HzOutput voltage: 24 V DCHighest current: 10ADuty cycle: Max 10% or 2 min. in use followed by 18 min. not in useAmbient temperature: -5°C~40° CColor: black or white