Luo Wei, Deputy Director of the Emerald Technology Center Ncv Detector,Ncv Test Pen ,Detector Ncv,Ncv Voltage Tester YINTE TOOLS (NINGBO) CO., LTD , https://www.yinte-tools.com
In the past, everyone questioned that many lamps and other quality problems such as dead lights generally point to the driving power supply. In fact, the culprit is often a capacitor. There is a saying in the industry that "the life of an electrolytic capacitor is the life of an LED driver." Compared with traditional power supplies, LED driver power supplies require more stringent capacitors. 
Luo Wei, deputy director of the Emerald Technology Center, gave a speech on the theme of “1-7W MR16 small spotlights using solid capacitors instead of liquid capacitorsâ€. The following conclusions were drawn through comparison:
1. Using solid capacitors to improve the performance of MR16 small spotlights, no need to change the circuit design, can be directly replaced; 2, the use of solid capacitors can double the life of MR16 small spotlights; 3, the use of lower capacity solid capacitors can be replaced The original liquid capacitor is beneficial to the miniaturization of the circuit and the installation of the whole machine. 4. The solid capacitor can be used normally in a wider temperature range.
In addition, the liquid capacitor uses the electrolyte as the dielectric material, and can not get rid of the thermal expansion due to physical properties, and the danger of liquid leakage occurs, which makes the liquid capacitor become a major bottleneck of the LED driving power source.
Finding solutions that can replace liquid capacitors is imperative.
As an important part of the driving power supply, the capacitor faces new challenges and opportunities in terms of performance and cost. 
Luo Wei: MR16 small spotlights use solid capacitors
[High-tech LED reporter Zhu Chunwei] On the afternoon of November 26th, the fourth session of the CTO conference held in conjunction with the 2013 Gaogong LED Lighting Exhibition was held in the fourth session of Zhongheng Paiwei: driving power and intelligent control held at Hall 5, Guangzhou Poly World Trade Center The meeting was hosted by Dr. Jin Peng, a professor at Peking University Shenzhen Graduate School.