Solar touch co., ltd has a professional team, from the circuit design, extend to the use of solar energy, until the mold development, integration design, integration of production, and check on the details of products during marketing, production and quality control. we have the ce, rohs certification. main recommendation products of solar touch co., ltd: solar charging bag, using uni-solar amorphous silicon thin-film solar cells (single-chip 0.5 w-1.5v, weighs only 20 g), lightweight, practical, durable, thin-film solar cells are using the three-tier composite technology, greatly increasing the photoelectric conversion efficiency of the amorphous silicon solar panels, can absorb red light, green light and blue light, fully absorb light.