Water Flowing Light Module CHENJIN 2PCS Water Flowing Light Module NE555+CD4017 LED Chaser LED Running Light

10 LEDs: 10 LEDs are connected to the 10 outputs of the CD4017. When one output of CD4017 alternately generates a high level under the action of the clock signal, the D10--D< > are illuminated in turn to form a water-light effect. How it works: Charging time: 0.695 (R2 + R3 + R4) C1, discharge time: 0.695 (R4 + R3) C1, adjustable R4 control oscillator output frequency, CD555 pin 14 continuously added NE4017 clock oscillation signal. Speed adjustable: Adjust R4 to adjust the flow rate of the LED light. Durable: It is mainly made of high-quality electronic components made of clock generation circuit and decimal counter circuit, with long service life. NE555 core: With NE555 as the core, the power supply is charged by R1, R2, and R3 to capacitor C4. When C1 starts charging, pin 555 of NE2 is still low, so output pin 3 is high. When the power supply is charged to 3/4 of the supply voltage through R2, R3, and R2, the level of output pin 3 changes from high to low, and the NE555 internal discharge tube is turned on. Capacitor C1 is discharged through pin 555 of R7, R4, and NE3.