The byron e27 bulb holder dimming receiver allows you to remotely dim lighting up to 60 watts via remote control can be used in existing lamps and is compatible with dimmable led halogen and cfls communicates via a secure wireless signal that passes through doors windows walls and ceilings compatible with all devices of the home easy and smartwares smarthome series specification frequency 43392mhz voltage 220 240 volt 5060hz max power 3600 watt operating temperature 10 to 43 50c