While the claim may be that this type of panel has superior shade resistance, the results can be very different.

smaller cell size
FACT
: The smaller the cell size, the less shading it requires to be 100% shaded. The same amount of shade that completely covers a small cell might only cover ¼ of a larger cell. Larger cells are better for shade resistance.

solar cells shaded
FACT
: If just one cell is 100% hard shaded, the output from that series string of cells will be zero, or close to zero.

FACT
: Silicon solar cells consume power as well as produce power. If a cell is shaded, it will consume power from the other cells in the series string, resulting in diminished output and heating up of the shaded cell.

solar panels in parallel
FACT
: If several series strings of cells are connected in parallel without the installation of blocking diodes, the power from good strings will feed into a shaded string resulting in diminished panel output and the chance of cells burning.

blocking diodes
FACT
: Blocking diodes prevent back-feeding in parallel circuits, but reduce voltage output by 0.7v.

solar-panel-6
FACT
: By-Pass diodes prevent cell burning ("Hot-spots") and do not consume any power or diminish panel output.

FACT
: The more cells and electrical connections there are on a panel, the more output-reducing series and shunt resistance the panel will exhibit, and the more chance of a connection failure, particularly if the panel is flexed.

solar cells in series
For best results, look for a panel with large, high efficiency cells, in one series string, with by-pass diodes protecting any string of 50w or greater.

blocking diode drawing
Blocking diodes must be installed on circuits or panels connected in parallel.

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