Then eight in series is 26.4V, which is higher than the LED input voltage. Therefore, booster type constant current source should be used. However, in order to reduce the current to 100mA, the forward voltage at this time is only 2.8V, and the eight series are 22.4V, and the load voltage becomes lower than the supply voltage. Thus the booster type constant current source will not work at all and the step-down type should be used instead. For a boost type of constant current source must work in the buck is not good, and finally LED will appear flashing phenomenon. In fact, as long as the boost type constant current source is used, when the forward current is dimmed at very low brightness, flicker will almost certainly occur. At that time, the LED load voltage must be lower than the power supply voltage. Common-Cathode CC 3202AW 7-Segment digit 3202AW LED Common-Anode CA 3202BW Display 3202BW 0.30 inch Common-Cathode CC CL3022AW 7-Segment digit CL3022AW LED Common-Anode CA CL3022BW Display CL3022BW 0.30 inch There was the phenomenon of starting overshoot, and some overshoot was very serious. The internal control circuit of the driver also has certain requirements for the temperature and humidity of the environment. The driver may not work in the environment where the LED can work normally. In hot, humid environments such as toilets and balconies, the driver is easily damaged -- the kind of lights that fail once a year or even a few months, most likely the driver is broken. Common-Cathode CC 3941AG LED 3941AG 0.39 inch Common-Anode CA 3941BG 7-Segment 3941BG Display Mini LED display is becoming more and more mature, who in the end can lead in this track strength? Nowadays, with the continuous upgrading of consumer demand, people pay more attention to the quality of life, just like the TV in the living room, the screen size is getting bigger and bigger at the same time, people have higher requirements for its picture quality performance. Fortunately, in recent years, Mini LED display continues to develop and mature. Common-Cathode CC 4201AG LED 4201AG 0.40 inch Common-Anode CA 4201BG 7-Segment 4201BG Display