Which product lines that the Tuya Wi-Fi protocols respectively apply to?

Wi-Fi 4 (2.4 GHz/5 GHz): electrical, lighting devices, sensors, home appliances, IP cameras, gateways, central control units, and more. Wi-Fi 6 (2.4 GHz): electrical, lighting devices, sensors, home appliances, IP cameras, gateways, central control units, and more. Wi-Fi 4 (2.4 GHz/5 GHz) & Bluetooth LE: electrical, lighting devices, sensors, home appliances, IP cameras, gateways, central control units, and more. Wi-Fi 6 (2.4 GHz) & Bluetooth LE: electrical, lighting devices, sensors, home appliances, IP cameras, gateways, central control units, and more.