Yunnan LED lights : Poly -Technology Co., Ltd. based in Yunnan Kunming University, Yunnan Normal weight and more experts and professors of solar photovoltaic and wind power generation, specializing in Yunnan LED lights, solar lights, solar photovoltaic systems, wind power system products R & D, design, sales, as one of the high-tech professional company. can provide you with Yunnan LED lights service is our pleasure!