Designed mini body, which is working with most of amounting boxes, switches and wall sockets. It is not only small, but also powerful, it can be used for most of home appliances and lightings. Specifications: Type: 1CH Zigbee Switch Module / 2CH Zigbee Switch Module / 3CH Zigbee Switch Module / 4CH Zigbee Switch Module (Optional) Max. Load: 1CH: LED 300W, 10A 2CH: LED 2*150W, 2*5A 3CH: LED 3*150W, 3*3.3A 4CH: LED 4*150W, 4*2.5A Material: ABS Voltage: AC100-240V, 50/60Hz Operation Frequency: 2.405GHz-2.480GHz Operation Temp.: -10~40 Protocol: Zigbee 3.0 Operation Range: <100m IP Rating: IP20 Item Size: 39 * 39 * 18mm / 1.54 * 1.54 * 0.71in Item Weight: 36g / 1.27oz Package Weight: 42g / 1.48oz Package Size: 6 * 4 * 2.3cm / 2.36 * 1.57 * 0.91in Package List: 1 * Smart Module 1 * User Manual (English)