Finder twilight switch for 35mm din rail light dependent relay 11 series finder 114182300000 this light dependent relay twilight switch is from the finder 11 series and is used for the automatic control of lighting according to the ambient light level the relay is for 35mm din rail mounting with an input voltage rating of 230v ac 50 60hz and 16a output the relay has european patent zero hysteresis for energy saving and a italian patent light feedback compensation principle t