Use for 1.Remotely give a pulse signal to turn on/off Lights,Lamps.PC and other home appliance. 2.Remotely give a pulse signal to turn on/off Garage Door,Door Access 3.Remotely give a pulse signal to control DC Motor,AC Motor to Forward and Reverse What can I use it for? *Connect a light, remotely control the switch of the light.Connect a light, remotely control the switch of the light, and can also switch on and off regularly 19:00 On 21:00 Off *Open your curtains regularly 7:00 *Change the water for the fish tank regularly *Use mobile phone or voice control Garage door switch *Control your heater remotely *And your coffee machine *Connect a water pump, remote control or timer switch More functions waiting for you to discover. DIY 3 Working Modes 1.Self-locking : each channel could be switched on/off seperately.You can turn on/turn off all channel at the same time. 2.Interlocking mode : Switch on any channel , other channels will be switched off automatically . 3.Inching mode : Switch on one channel,the channel will be automatically closed after 0.5seconds .Other channel is same as the channel. If you need to change the mode,you need to press the mode button Features: Input voltage : DC5V DC/AC 7-32V ,85-250V Micro USB 5V input. Max current : 2200W/10A. WiFi standard : WiFi 2.4 ghz b/n/g. Size : 1CH 69*41*20mm Description: NC NO COM Output:Passive Output(Dry contact) Working frequency: 50-60Hz Working temperature: -20-70 Wifi standards/ protocol :IEEE 802.11b/g/n, WIFI 2.4Ghz Features: Two Input Ports You could choose USB 5V port or the DC/AC7-32V screw terminal port to supply power in the input to make the pcb board board work. Dry Contact/Passive Output No matter the power source you supply in the input, the output don't have any voltage If you do not supply power source in output port, the connectted home appliance can't work, you also need to supply power source in output. Timer The connectted home appliances can be automatically turned on/off according to the time schedule. Each channel can set different time schedule. Different Ways to Control the WIFI Module APP Remote Control You can control the connectted home appliance in APP anywhere and anytime.Such as light, electric kettle, electric rice cooker, electric curtain, etc. RF2.4GHz Control The WIFI Module support 2.4G RF ,and you can control the WIFI module by 2.4GHz remote controller(We recommend purchasing our remote control). Mobile Phone Control When you go outside or at home,you could control the device in your smart phone by 2G/3G/4G Mobile Network or WIFI. (Note:The router need to online.The WIFI module need to keep a close distance with the router and the wifi module need to online in APP) Voice Control Compatible with Alexa and Google Assistant, you can use the voice control to turn on/off the connectted home appliances . Share Control One device can control by Multiple phones,you can share the wifi module with your family. Group Control one phone can control Multiple smart device.You can add the wifi module and other smart device in a group,and then you can turn on/off all smart device at the same time. Include Smart Switch English manual RF (Choose to buy 2.4GHz Remote Control Work with Our Switch Battery Not Include CR2032X1 A variety of versions sent randomly, may look a little different, but the function is the same