Linear Light Sensor

Linear Light Sensor, we also call it phototransistor or photosensitive resistance. The chip integrated inside is very sensitive to light changes. So normally it is used to detect the current ambient light level and converts the light energy into an electrical signal output.

Compared with traditional photoresistors, light sensor is more environment friendly and complied with ROHS requirements. We can also make it to be SMD type with mini size. It is more and more popular now.
http://www.senbasensor.com/products/linear-light-sensor/