A new semi-permanent LED power supply product is designed for the current outdoor LED power supply life of <10000 hours. This product has no electrolytic capacitor and adopts current type system control, which makes the life and reliability of outdoor LED power supply have a fundamental guarantee. The design life is >50.000 hours. The product working temperature range meets the requirements of US military design. This product warranty 5 year. After 8K mass production experiments, the product's external characteristic technical indicators are all within 3%; the product failure probability before and after product aging is <3‰ (40% of the quality of the piece; 60% is the welding process problem) , did not find design problems), to achieve the original design performance indicators. Since the LED power supply has no PFC and electrolytic capacitors, the output characteristics are different from those common on the market. The output indicators increase: two technical indicators: voltage standing wave ratio and energy standing wave ratio. These two indicators are:
1. Output voltage, energy standing wave ratio: voltage standing wave ratio: 1.33 Energy traveling wave ratio: 0.75
AC110V oscilloscope wave shape
AC110V full light test full picture
2, output voltage, energy standing wave ratio: voltage standing wave ratio: 1.33 energy traveling wave ratio: 0.65
AC220V oscilloscope waveform 
AC220V whole lamp test