Similar in design to 12019. Except the sensor is an LDR. Thus operation of the relay is dependent on ambient light levels. Making it suitable for an automatic night light.
AC SPEED CONTROL 2000 WATTS
EFK 12000 Just Whistle
EFK 12001 Infra -Red Link
EFK 12002 Infra -Red Remote Control
EFK 12004 Telephone Line Recording Switch