![Amazon.com: MakerHawk Time Delay Relay, 12V 5V USB Relay Module 6-30V Delay Controller Board Delay-Off Cycle Timer Control Switch with LCD Display Support Micro USB 5V Power Supply : Tools & Home Amazon.com: MakerHawk Time Delay Relay, 12V 5V USB Relay Module 6-30V Delay Controller Board Delay-Off Cycle Timer Control Switch with LCD Display Support Micro USB 5V Power Supply : Tools & Home](https://m.media-amazon.com/images/I/71Rrru28-DL._AC_SL1000_.jpg)
Amazon.com: MakerHawk Time Delay Relay, 12V 5V USB Relay Module 6-30V Delay Controller Board Delay-Off Cycle Timer Control Switch with LCD Display Support Micro USB 5V Power Supply : Tools & Home
![Smart Electronics 5V 30V Micro USB Power Adjustable Delay Relay Timer Control Module Trigger Delay Switch|Integrated Circuits| - AliExpress Smart Electronics 5V 30V Micro USB Power Adjustable Delay Relay Timer Control Module Trigger Delay Switch|Integrated Circuits| - AliExpress](https://ae01.alicdn.com/kf/HTB1vDh0ahn1gK0jSZKPq6xvUXXaw.jpg)
Smart Electronics 5V 30V Micro USB Power Adjustable Delay Relay Timer Control Module Trigger Delay Switch|Integrated Circuits| - AliExpress
![USB 16 Channel Relay Module for Automation, DIN Rail BOX - Virtual COM (Serial) Port - Denkovi A E LTD USB 16 Channel Relay Module for Automation, DIN Rail BOX - Virtual COM (Serial) Port - Denkovi A E LTD](http://denkovi.com/userfiles/productlargeimages/product_524.jpg)