ESMART PUSH BUTTON SMART DIMMER SWITCH up to 4 channel lighting can be dimmed just with one simply switch * Material : Aluminium Alloy * Protocol : Zigbee  * Input Power : 100 - 250V AC50/60Hz * Color : Black / White / Grey / Gold * Wiring : Neutral Required * Max current : 10A * Dimension : 86*86*39mm