Input voltage, lamp failure and matching problems will cause the lamp to go out for a period of time

One end of the Y capacitor in the filter circuit is connected to the shell, which will feel tingling when the shell is not grounded.

Ballast is composed of electronic components, electronic components of their own parameters have positive and negative error, so when combined into a finished product, the power also produced a difference. For example, the main control chip, its operating frequency error is ± 2KHZ; the error of inductive components is ± 5%; the error of electrolytic capacitors is ± 20%; the error of film capacitors such as output capacitors is ± 5%; In addition, there are also errors in the power of the lamp, mainly because the lamp voltage is related to the ambient temperature, and the ballast output is relatively constant current, so when the lamp voltage changes, the lamp power will change accordingly, resulting in changes in the ballast input power. The internal control standard of ballast production is ± 10%

In November 2020, Beijing Charmsstone Electronic Technology Co., Ltd. became a credit certification enterprise and received a plaque from the Credit Rating and Certification Center of the Institute of International Trade and Economic Cooperation of the Ministry of Commerce.