Power long overvoltage protection circuit when the supply voltage is below or above a certain value, the protector off the line; when the supply voltage returns to the normal range, the protection is automatically turned on. Power factor This value is usually between 0 and 1, Xi'an rainproof power supply factory outlets, and its value must not be greater than 1, Xi'an rain power suppliers, it is W (real power) and VA (virtual power) value number ratio between Xi'an rain power prices, and with less than a high number, higher than the number the better the effectiveness of the appliance itself, rain power, whereas the lower number ratio, then the electrical energy consumed by itself The larger, the more power. Xi'an rainproof power supply manufacturers _ Shenzhen far Lighting (Online) _ rain is powered by Shenzhen far Lighting Limited. Lighting Co., Ltd. Shenzhen far (www.zhenyuled.cn) (www.zhenyuanled.cn) is Xi'an, sodium leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . In Shenzhen far lighting leadership with the staff warmly welcome all inquiries negotiations to create lighting Shenzhen far better future.