... 2700K/4000K/6400K 4.Cap:E27/E14 Shanghai Deda Industry and Trading Co., Ltd. is a fast growing company specialized in making ... lamps have glass tubes glued with lower plastic covers, electronic ballasts separated, and upper plastic covers welded with metal ... like clean glass tubes, stems, filaments, triband powders, gluing cement, electronic ballasts and their components and so on.6, All fluorescent ...