The 8-Channel ESP8266 WIFI Relay Module - 8-way has been making waves in the secondary development community due to its impressive capabilities.
With support for DC7-28V/5V power supply and onboard ESP-12F WiFi module with large capacity 4M Byte Flash this development board is perfect for beginners who want to learn more about ESP8266 secondary development.

One of the standout features of the ESP8266 WIFI Relay Module is its onboard mature and stable ESP-12F WiFi module which allows for easy and reliable connectivity. The module also comes equipped with a RST reset button, making it simple to reset the WIFI module if necessary. Additionally, the ESP-12F supports the use of development tools such as Eclipse/Arduino lDE and provides a reference program under the Arduin0 development environment.

The biggest advantage of the ESP8266 WIFI Relay Module is its flexibility in power supply modes which allows for both DC7-28V and 5V power supply. However, some users have reported issues with bent connector pins due to poor packaging, and others have noted that relays 1 and 6 tend to close and open quickly when switched on, which may not be suitable for sensitive electronics.

All things considered this product is worth considering for those looking to explore ESP8266 secondary development. Its stable WiFi module, flexible power supply modes, and compatibility with popular development tools make it a solid choice for beginners. However, the issues with connector pins and relay behavior should be taken into consideration before purchasing. If you're in the market for a reliable and flexible ESP8266 WIFI Relay Module this product is definitely worth a closer look.