Listed as a Wi-Fi module for a compatible rocker-switch installation. The original instructions state that it is suitable only for a rocker switch and requires live and neutral wiring.
The listing describes single-pole and two-switch lighting arrangements. In its listed two-switch arrangement, the module connects to one of the two compatible switches. Confirm the actual wiring diagram, switch type and supplied model before installation; this is not a universal circuit-compatibility guarantee.
The original setup information requires 2.4GHz Wi-Fi and describes Smart Life/Tuya app control without a separate hub. App, sharing, schedules and voice-service functions depend on compatible account and network setup.
Check the supplied input rating, connected load and switch-box fit. The listed load limit is separate from the module's own power consumption. Follow the user manual that matches the supplied model and revision.