LED bulb test methods: Lighting electrical properties. At an ambient temperature of 25 ℃ ± 1 ℃, the power supply (with a nominal voltage lamps, the same frequency) access between accuracy and LED bulb is not less than 0.5 AC and DC parametric tester 5w bulb, so LED bulb in a normal working position, turn and adjust the supply voltage to the rated value (such as lamps nominal supply voltage range, were adjusted to the maximum and minimum supply voltage range) makes LED bulb work 2 h 5w Bulb brand, recording power and power factor values. led energy saving lamps Specifications Glossary: ??Color temperature: refers to a standard blackbody heating 5w bulb factory, the temperature rises to a certain extent, starting from the dark red color - light red - orange - white - blue, gradually changing to a light source and a blackbody The colors are the same price 5w bulb, then we will definitely blackbody temperature is called the color temperature of the light source. Generally the color temperature is not used as an indicator LED lights with the assessment, but many foreign customers because of the use and environment, will make a special request. 5w bulb supplier, Hang Li saving (certified), 5w bulb provided by Anyang Hi-tech Zone Heng Lai energy-saving lamp factory. High-tech Zone Anyang Heng Lai energy-saving lamps factory (www.ayhljnd.com) is Anyang, other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Hang Li leadership in energy efficiency with the staff warmly welcome all inquiries negotiations to create a constant Korea saving a better future.