The light shining on the sensor can replace the hand to activate the circuit, which can help you use the light source to control the circuit. It is very suitable to use the photocell on the alarm clock.
Specifications
Connections: RJ11 4P4C
Power: 3.3V
Connections type: Analog output
You can find the introduction of this product following this link
https://wiki.elecfreaks.com/en/microbit/sensor/planet-x-sensors/Plant_X_EF05001
