1 LED wifi controller 2. You can control lighting ... controller and multi-point controller.4, For single point controller, you can control only 1pcs controller. For multi point controller, you can control upto 12pcs controller ... :Category: communications6:Free, green, no plug-ins Controller technical parameters1:Working voltage: DC5--24V2:Output control: ... (-10dBm),802.11gOFDM(-15dBm) WiFi LED Controller