Smart binding switch (One-Gang). Like a remote controller of certain switches, you can control the kitchen lights with this Binding Switch in bedroom, via connecting this switch with the Smart Switch in kitchen. One gang can bind one switch, two gangs can bind two switches, three gangs can bind three switches. 110V-240V, 50/60HZ, Standby power consumption <= 0.3W. Dimensions: 86.8x87.2mm. Weight: 220g toughed glass (NW).