1. Adjustable LED street light power supply constant current accuracy
The constant current accuracy of the power supply on the LED street lamp market is poor, and the error may reach ±8%, and the error is too large. LED street light supplier generally require ±3%. According to the 3% design. The production power supply should be fine-tuned to achieve ±3% error.
2. LED street light power efficiency
LED street light input power minus output power value, this parameter is especially important, the higher the value, the lower the efficiency, which means that a large part of the input power is converted into heat, if it is installed in the lamp, it will produce a very high The temperature, in addition to the light-emitting ratio of the LED, will be superimposed to produce a higher temperature. The life of all electronic components inside our power supply will shorten with the increase of temperature, so efficiency is the most fundamental factor to determine the life of the power supply, the efficiency cannot be too low, otherwise, the amount consumed on the power supply is too large.
3. How wide are the series and parallel connection of the power board and the wide voltage?
In order for the LED street light power supply to operate in the wide range of input voltage range AC85-265V, the LED series-parallel mode is very important. Try not to use wide voltage, AC220V, AC110V as much as possible to ensure power supply reliability. The number of series is not more than 45 strings. Do not use too many parallel connections, otherwise, the operating current is too large and the power supply is hot.
Micle 2019-09-09 11:16:51
Hong Kong International Lighting Fair (Autumn Edition)
Time: 27, Oct—30, Oct, 2019
Add: 1 EXPO Drive, Wanchai, Hong Kong
Booth NO.: 5E-H11
Hong Kong International Outdoor and Tech Light Expo
Time: 29, Oct--1, Nov, 2019
Add: Asia international Expo, Hongkong international airport, Lantau Island, Hong Kong
Booth NO.: 8-B20