Ningbo Best Solar Energy Technology Co.,Ltd
monocrystalline-solarpanels.com
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low price 70w - 90w polycrystalline silicon solar panel
Features
High efficiency solar cells
High transparent low-rion , tempered glass
Water resistant junction box
Anodized aluminium frame
Nominal 12 v DC for standard output
Design to meet unique demand of customer
Benefits
Manufactured in an ISO 9001:2000 certified plant
High efficiency , high safety, high reliability
Output power tolerance of +/-3%
25-years Limited warranty on Power output, 3-years
limited warranty on materials and workmanship
Electrical Characteristics
|
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 |
STC:Irradiance 1000 W / m2 , Module temperature 25 ℃, AM= 1.5 spectrum
Specifications
| cell | Mono-crystalline 125 x 125 mm |
| No.of cells | 36 (4 x 9) |
| Dimension of module | 1196 x 556 x 35 mm |
| Weight | 7.00 kg |
Temperature Coefficients
|
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 % / ℃ |
|
Module Diagram