HIGH EFICIENCY MULTICRYSTAL PHOTOVOLTAIC MODULE. 135Watt - 59in long x 26.5 in wide. Kyocera's advanced cell processing technology and automated production facilities produce a highly efficient multicrystal photovoltaic module. The conversion efficiency of the Kyocera solar cell is 16%. These cells are encapsulated between a tempered glass cover and an EVA pottant with back sheet to provide maximum protection from the most severe environmental conditions. The entire laminate is installed in an anodized black aluminum frame to provide structural strength and ease of installation. Equipped with an industrial grade junction box. 20 year limited warranty on power output.