Oil Filter Assembly,Washer for Engine Generator,Oil Filter ，Engine Oil Filter Spare PartsParts Jinan Guohua Green Power Equipment Co.,Ltd. , https://www.guohuagenerator.com
According to the investigation report provided by the Fujian Institute of Science and Technology Information, the luminous efficacy of the LED bulb exceeds the light efficiency index of all publicly reported LED bulbs at home and abroad, making it the "brightest bulb" in the world. Wanbang Optoelectronics said that the product uses a crystal LED high-efficiency chip, using the unique technology of Wanbang MCOB package and Wanbang's hollow bulb structure design, with independent intellectual property rights. At present, the product has been industrialized, and the production cost is lower than that of similar products. In the near future, it can be introduced to the market on a large scale, and the price will be close to that of energy-saving lamps. 
[High-tech LED News] It is reported that the Haixi Research Institute of the Chinese Academy of Sciences, Fujian Wanbang Optoelectronics and Jingneng Optoelectronics jointly developed a 4W LED bulb, which was tested by the National Semiconductor Light Emitting Device (LED) Application Product Quality Supervision and Inspection Center. The effect is greater than 134.3 lm/W (lumens/watt) and the color rendering index is greater than 80.