[Two Input Ports] You can choose the -USB 5V port or the screw terminal port to supply power at the input to make the pcb board work. [Dry Contact/Passive Output] No matter how much power you input, the output will not have any power voltage If the output port does not supply power, the connected cannot work, and the output port also needs power supply. [Timer] Connected can be automatically turned on/off according to the schedule. Different schedules can be set for each channel. Different control methods of WIFI module [APP Remote Control] You can control connected , such as , electric kettles, rice cookers, electric curtains, etc., in Tuya or Smart Life APP anytime, anywhere [Mobile phone control] As long as you add the device in the APP through 2.4G WIFI, you can control the device in your smartphone through 2G/3G/4G mobile network or WIFI. (Note: The router needs to be online, and the WIFI module needs to be close to the router) [Voice Control] Compatible with Alexa and Google Assistant, you can use voice control to turn on/off connected appliances. [RF433 Control] The WIFI module supports RF433 frequency, you can control the WIFI module through the RF433 remote control. [Equity Control] One device can be controlled by multiple mobile phones, and you can share the wifi module with your family. So your family can control the module too. [Group Control] One mobile phone can control multiple smart devices. You can add wifi module and other smart devices into a group, then turn on/off all smart devices at the same time. Switching current is less than 10A Working temperature:-20 to 70 degrees Operating Humidity:40% to 80% RH Input voltage:DC/AC 7V-32V Only supports 2.4G WiFi Jog mode:Turn on channel 1, channel 1 will automatically turn off after a few seconds you set in the APP. Channel 2 is the same as channel 1. Self-locking:Like a normal 2-channel switch, each channel can be turned on/off individually. Interlock:open/close any channel, other channels will be closed/open automatically. Due to different batches, there may be differences in product appearance, color, and text, which will not affect the use Colour:White Material:Plastic Size:116x38x25mm Package Contents: 1 * Tuya Smart Switch with case 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.