Utilizing a solar panel to convert the suns energy two LEDÃ¯Â¿Â½s will alternatively blink and the blinking speed may be adjusted.Technical Specifications:
â€¢Power Source: Solar panel
â€¢Solar panel: 4 VDC, 60 mA
â€¢Adjust flashing speed with potentiometer
â€¢PCB dimensions: 1.39 x 1.27 inches
TR1 and TR2 form a multi vibration frequency circuit when assembled and work in conjunction with LED1 and LED2 to alternatively turn the LEDÃ¯Â¿Â½s on and off.
When TR1 is powered, LED1 will light and LED2 is off.
When TR2 is powered, LED2 will light and LED 1 is off.
The blinking speed is controlled through VR10K, R2, R3, C1 and C2. R1 and R4 act to reduce voltage to the LED.