1. Tuya series products do not support all devices. 2. Bluetooth is only used for network signal connection and cannot be used alone. WIFI+Bluetooth is more stable 3. The wall switch must be open and the circuit breaker must be powered on before it can be used. 4. Wifi+Bluetooth dual mode, connect to faster. Connect to the Internet 2 times faster than Wifi only 5. Two-way: It can support both one-way switch and two-way switch, which is more convenient and practical. 16A high power meets the power of most electrical appliances and is than 10A The mini body can be installed directly in the switch bottom box without placing it on the ceiling, which facilitates maintenance operations. Support dual control: can be used together with the dual control mechanical switch before connecting to the home Use with and Google Home, Tmall Genie Share with family members for joint control 3 states: default on or off, or memory state Countdown, timing and sharing functions Input voltage:100-240V 50/60Hz Maximum load current:16A WiFi standard:2.4GHz 802.11 b/g App name:Tuya Smart/Smart Life Due to different batches, the appearance, color, and printed words of the product may be different, which does not affect the use. Colour:Black Material:PC Size:59x42x20mm Package Contents: 1 * Controller Switch Only the above package content, other products are not included. Note: Light reflection 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.