Download data sheet here: http://www.electronics123.net/amazon/datasheet/fk401-manual.pdf
- Make sure this fits
by entering your model number.
- Electronic circuit that uses LDR to receive light in order to control the relay for on-off of electric home appliances.
- Power supply : 12V.
- PCB dimensions : 2.7 X 1.4
- Kit - Basic Soldering Required