The advantages of LED bulb: no inflated, no glass shell, impact resistance 3w bulb, resistance to shock, not broken bulb 3w which brand is good, easy to transport. 3w light source unit smaller bulb design makes cloth lamp bulb 3w more flexible production, and better able to achieve the effect of night lighting "I saw the light but not the light," the. Better control of the emission spectrum of the composition, can be suitably used in museums and galleries partial or accent lighting. Referred to as a light emitting diode LED. It is a semiconductor diode that can put energy into light energy. Light-emitting diodes with ordinary diode. LED optical parameters is important aspects: luminous flux, luminous efficiency, emission intensity, the light intensity distribution, wavelength. Luminous efficiency is the ratio of luminous flux and electrical power units generally lm / W. Represents a saving features luminous efficiency of the light source, which is an important indicator to measure the performance of a modern light. 3w bulb how much money | Hang Li saving (certified) | Shandong 3w 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.