John Belmonte 5 The textured surface of this panel seems to work well. For sky with a medium haze, 1 Renogy 175W panel had higher output than series connection of 2 x 120W panel of another brand (スマートタップ). And with overcast sky in the morning, sometimes it generates power even without direct sun (i.e. by reflection from clouds alone).The lead cables are short, I would like have longer cables.