47.121 Smart Lighting Receptacle BJB 47.121 Smart Lighting Receptacle is an electromechanical interface for smart outdoor luminaires designed according to Zhaga Book 18 to accommodate communication and sensor units. The 47.121 Smart Lighting Receptacle features a compact design for a flexible mounting position in the luminaire housing. The IP-66 compliant receptacle and sealing cap provide protection from the elements. The unit provides a complete electrical interface between the receptacle and the respective sensor modules. When used in conjunction with sensor-compatible certified drivers, the receptacle assembly is suitable for a plug-in sensor module with a twist-lock system.