Shenzhen Humboldt Optoelectronics Co., Ltd. is a high-tech enterprise which specializes in designing, developing and manufacturing Led filament bulb products.Since 2012, Humboldt R&D group which is composed by professional engineers, have been constantly bringing in advanced technology to develop Led filament bulb, which is called as the replacement of the traditional filament bulb. Our talented team combines the latest Led technology and the traditional filament bulb technology into the automated production machines which are designed by us. Today, we are proud to announce that, our Led filament bulb products are ready to go after thousands of tests. Our newly born products passed the CE and UL test. So far, we have a Led filament bulb product line with the full specifications and are able to carry on the customized projects. Humboldt Optoelectronics is dedicated to becoming a world class player in Led filament bulb markets. We sincerely invite companies which have farsightedness to ally with us in this huge new market and move forward hand in hand together.