Led street lamp design question and answer ( 5) How to determine the led street lamp series parallel voltage

Q: design series parallel LED street lamp power supply board, wide voltage how much a: right in to the input voltage range is wide range AC85 - LED street lamp power supply is normal and efficient work under 265 v, the LED street lamp power supply lamp panel leds series-parallel ways must be reasonable design. Requirement is

q: series and parallel design the appropriate wide voltage led street lamp power supply board is how much a: in order to make the led street lamp power supply in the wide input voltage range AC85 - 265 v normal and efficient work, must be reasonable design of LED street lamp power leds series-parallel ways. Requires use of wide voltage is not as much as possible. If can be divided into ac 220 v ac 110 v, and must be classified as far as possible, to ensure the reliability of power supply. Light pole national standard using an isolation step-down constant current power supply. When the voltage of 110 v, output voltage should be less than 70 v, series number should not be more than 23. Parallel design, the number of parallel cannot too much, otherwise the working current is too large, cause power supply heating, seriously affect the service life of the led street lamp.