E-kit »twilight switch« still 60271 The light sensor included in the E-Kit allows circuits to be switched on, off or switched using the relay included. The sensitivity level of the sensor can be adjusted individually to your own wishes. Contents: - 1x universal electronics - 1x microprocessor with software twilight switch - 1x light sensor - 1x adjustment controller for the sensitivity of the light sensor - 1x relay, 50 cm black cable .