SHENZHEN LEARNEW OPTOELECTRONICS TECHNOLOGY CO LIMITED. places great importance on raw materials used in the manufacturing of 220v 20w-50w cob led. Each batch of raw materials is selected by our experienced team. When raw materials arrive at our factory, we take good care of processing them. We totally eliminate defective materials from our inspections.. To expand our Learnew brand, we conduct a systematic examination. We analyze what product categories are suitable for brand expansion and we make sure these products can offer specific solutions for customers' needs. We also research different cultural norms in the countries we plan to expand into because we learn that foreign customers' needs are probably different from those of domestic.. To ensure that we meet the production goals of customers, our highly skilled service-oriented professionals will be available to help learn the details of products provided at Learnew Optoelectronics. In addition to that, our dedicated service team will be sent for on-site technical support..