8V solar panel power generation schematic diagram
240KW/400KW industrial rooftop - commercial rooftop - home rooftop, solar power generation system.
1 Watt Power LED. In the evening, current from the solar panel stops and relay de-energize. At the same time, the NC contact of the relay gets power from the battery through the common contact and LEDs turn on. Theoretically, the battery can power 12 hours with 350 mA current, but the battery voltage and current reduces drastically.