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In modern homes, due to the restrictions of the conditions, the bathroom, dining room or living room can not be illuminated by natural light, and the lights must be turned on during the day.
After practice, a high-brightness LED lighting system that can be powered by solar energy during the day and powered by the mains at night is well solved.
In the specific production, the number and power of the solar panels should be selected according to the power used. According to the number of high-brightness LEDs used, whether the panels are connected in series or in parallel. Let's take a 3W, 17V solar panel and 20 high-brightness LEDs as an example to illustrate how to form a home lighting system. The solar panels 3W, 17V in the picture can be placed in a window or balcony where sunlight can be seen. The high-brightness LEDs are connected after every five strings and then in parallel.
This is because the operating voltage of the LED is 3.2 to 3.5V (current rating is 20mA). In the figure, Kl is an AC switch, and the regulated power supply is a 17.5V AC regulated power supply. D1 and D2 are isolation diodes.
Solar cells are powered during the day to illuminate the LEDs. Close the Kl at night to light the LED.
WOSEN is a professional manufacturer and supplier of Led Flood Light, Led Street Light, Led Solar Light, etc. For more information, please visit https://www.wosenled.com/ or contact admin@wosenled.com or WhatsApp +86-13425434349
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