1. Zero-fire single-fire two-in-one: it can be used regardless of whether there is a zero line, and no need to install capacitors 2. The mini body can be directly installed in the switch bottom box without placing it on the ceiling, which is convenient for maintenance and operation 3.16A high power meets most electrical power. Support dual control: can be used with the dual control switch before connecting to the home. 4. Works with and Home Tmall Genie. Share with family for joint control 5. 3 states: default on or off, or memory state. Countdown, timing, group function, sharing function. Input Voltage: 100-240V 50/60Hz Maximum load current: 16A/10A WiFi Standard: 2.4GHz 802.11 b/g App Name: Tuya Smart / Smart Life Wireless standard: Tuya scheme ZigBee 3.0 size: 59 x 42 x 20mm Material: plastic colour: White Package Contents: 1 x WiFi Switch Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.