Review on ☁️ Ethernet Controller Network Web Server + 16-Channel Relay Module for Remote Control of Lights, Air-Conditioning & Refrigeration by Bobby Inappropriate

As others have written here, this product is completely useless. The controller works fine right after switching it on, but stops responding after a few minutes. After that, you have no control over anything. The relay board itself is fine, but the point of this product is to control the relay over HTTP. The controller has a software or hardware defect unknown to the end user. It doesn't work without firmware. We'll send it back to the seller.