Power factor This value is typically between LED waterproof power between 0 and 1, and its value must not be greater than 1, it is the number ratio of W (real power) and VA (virtual power) value between Urumqi LED waterproof power supply manufacturers, but with less than a high number, the higher the ratio of the number, the better the effectiveness of the appliance itself, whereas the lower the ratio of the number, then electrical energy consumed itself greater Urumqi LED rainproof power suppliers, the more consumption electricity. Affect life span of the power switch times: Most power has capacitor input type rectifier circuit, when the electric power was turned, will produce surge current causes the switch contacts fatigue Urumqi LED rainproof power prices, causing the contact resistance increases and adsorption issues. Theorized that life expectancy during power, the number of switch-off about 10,000 times. Urumqi LED rainproof power sales, Shenzhen far lighting (certified) LED waterproof power supply away from the Shenzhen 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.