720 W HJT solar panel with 132 cells. Voc 50.3 V · Isc 18.08 A · TcVoc -0.24%/°C.
Select the panel you want to replace
String Compatibility Calculator
Verify the replacement panel works with your inverter
Panel Matcher
Find all compatible panels for a specific inverter
Already have panels?
Find an inverter that fits your panel array with the right MPPT range and DC/AC ratio.
How the Algorithm Works
Learn how panels are scored and matched
Voc
50.3 V
Vmpp
41.94 V
Isc
18.08 A
Impp
17.17 A
TcVoc
-0.24 %/°C
TcPmax
-0.24 %/°C
Pmax
720 W
Cells
132
Bifaciality
80%
Length
2384 mm
Width
1303 mm
Thickness
33 mm
Weight
36.6 kg
The Bluesun Solar BSM720G12-66HNH is a 720 W solar panel. Finding a compatible replacement requires matching the original electrical characteristics — particularly Voc, Vmpp, Isc, and temperature coefficients — to ensure safe operation within the same string.
Use the form above to find panels that match these specifications. Then verify the replacement in the String Compatibility Calculator with your inverter.
| Model | Power | Voc | Isc |
|---|---|---|---|
| 715 W | 50.22 V | 17.98 A | |
| 725 W | 50.38 V | 18.18 A | |
| 730 W | 50.46 V | 18.28 A | |
| 735 W | 50.54 V | 18.37 A |
The most critical specs to match are: cell count (must be exactly 132), Voc close to 50.3 V (within ±5%), and temperature coefficient TcVoc close to -0.24%/°C. If Voc differs significantly, the string voltage at extreme temperatures may shift outside the inverter's MPPT range. The replacement finder above pre-screens all candidates by these criteria.
A higher wattage panel usually has a higher Vmpp or Isc, which can affect string voltage and current. Small increases (up to 10–15%) are typically safe if the other electrical specs align. The replacement finder shows a compatibility score — 'Exact match' means the specs align closely. Always verify the replacement in the String Compatibility Calculator with your inverter before installation.
If the replacement has a significantly different Voc or Vmpp, the string voltage may shift outside the inverter's MPPT range, reducing energy production or causing faults. This effect is amplified at temperature extremes: at low temperatures, voltage rises by the TcVoc coefficient. The replacement finder automatically accounts for this — it scores candidates by how closely the electrical specs match the original Bluesun Solar BSM720G12-66HNH.