Low Price 70w - 90w Polycrystalline Silicon Solar Panel High Efficiency Solar Cells

Characteristics

BEST-70              BEST-80           BEST-90

Maximum power at STC (Pmax)

70 watt                80 watt              90 watt

Optimum operating Voltage (Vmp)                 

17.50 V               17.50 V             17.50 V

Optimum operating current (Imp)                 

4.00 A                 4.57 A               5.14 A

Open-circuit Voltage (Voc)                 

21.50 V               21.50 V             21.50 V

Short- circuit current (Isc)                 

4.53 A                 5.19 A               5.81 A

Operating temperature

-40℃to +85℃          -40℃to +85℃     -40℃to +85℃

Maximum system voltage                           

600V DC             600V DC          600V DC

Normal Operating Cell Temperature

　45 ℃±2 ℃

Temp.Coeff.of Isc (TK Isc ) 

　0.06 % / ℃

Temp.Coeff.of Voc ( TK Voc )

　-0.35 % / ℃

Temp.Coeff.of Pmax (TK Pmax )

　-0.48 % / ℃