Yes, the HDMI sync box works with any WiZ color-capable light that supports both Wi-Fi and Bluetooth. You can link unlimited number of lights to the Sync box as long as they're connected to the same Wi-Fi network (i.e. the same router and same SSID) as the Sync box. 

Note: older lights (manufactured before 2021) that only feature Wi-Fi connectivity will not be able to support TV sync feature.

You'll need to add and configure the lights in the TV area in the WiZ app for them to work with the Sync box. If your light is not compatible or not connected to the same Wi-Fi network as the Syn box, they will appear greyed out in the TV area setup page and cannot be selected.