PANASONIC VBHN340SA17 340W MONO SOLAR PANELPanasonic employs strict materials selection and qualified manufacturing processes. A vertically integrated factory allows for exhaustive quality assessments at every step of production. Panasonic photovoltaic modules HIT features an innovative hetero junction cell structure made of mono crystalline and amorphous silicon layers. Ultra thin amorphous silicon layers prevent recombinations of electrons, keeping carrier loss to an absolute minimum. As a