LED street light power supply design

High-brightness LED street lights design replace HID and HPS street lights. Although HID lamps have a long service life, but in low high light efficiency, and a well-designed LED system can direct light into a downward cone to achieve precise light distribution and eliminate light pollution. We all know that the voltage of each LED is slightly different, so how to avoid the uneven current on each LED is an important key design. Although every street light power supplier says that the power supply is a constant current output, in fact, after testing the current, it is still found that there are still great changes. But if the voltage of each power supply is different, then even with a constant current design, LED lights will get different currents.