Pros: Good low light output, good build quality, very good value for money (Watts per $)
Cons: Slightly odd voltage range means you need to use a MPPT controller for battery charging, not suitable for horizontal mounting.
After some extensive web searching I found a supplier that sold Sharp panels. I actually wanted the NT-175 monocrystalline panel but it is end-of-line and has been replaced by this, the ND-170 polycrystalline panel. The main reason I wanted the NT one was was that it had a higher Vmp of 35 Volts and my other panels are series-parallel 17.5Vmp panels, so a 35V panel would have matched. Anyway, the price was better on these ND panels and they are the only models that Sharp are carrying forward in the power bracket. The monocrystalline panels are now just in the 180+Wp NU panel class. The ND-170, in common with most of Sharp's high power panels is a lower voltage than commonly seen. Most...(read more)