Parameters:
- Color: Photo Color 
- Material: PC+ metal 
- Dark current, dark resistance: photoresin at a given applied voltage, when there is no light, when it flows 
- The current is called dark current. Applied voltage and the dark current ratio is called dark resistance 
- Sensitivity: sensitivity refers to the resistance value of the photocell of light irradiation (dark resistance) when irradiated with light and 
- resistance (resistance to light) of the relative exchange value. 
- Voltage characteristic curve. Volt-ampere characteristic curve used to describe the relationship between the applied voltage and the photocurt photocell, the photosensitive device, its photocurrent increases with the applied voltage. 
- The temperature coefficient. Photoelectric effect photocell influenced by temperature, partial photoelectric or optoelectronic at low temperatures 
- Greater sensitivity, while sensitivity to high temperatures is lower. 
- It refers to the nominal power for a certain photocell line allowed, when the temperature increase 
- High, your energy consumption is reduced.