415 W TOPCon solar panel with 108 cells. Voc 38.61 V · Isc 13.42 A · TcVoc -0.24%/°C.
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88 panels found · 3622 panels excluded
410 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.61 V | 38.58 V | 0.1% |
| Vmpp | 32.55 V | 32.32 V | 0.7% |
| Isc | 13.42 A | 13.39 A | 0.2% |
| Impp | 12.75 A | 12.68 A | 0.5% |
| TcVoc | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.3 %/°C | ±0.000 %/°C |
420 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.61 V | 38.64 V | 0.1% |
| Vmpp | 32.55 V | 32.77 V | 0.7% |
| Isc | 13.42 A | 13.46 A | 0.3% |
| Impp | 12.75 A | 12.82 A | 0.5% |
| TcVoc | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.3 %/°C | ±0.000 %/°C |
405 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.61 V | 38.56 V | 0.1% |
| Vmpp | 32.55 V | 32.1 V | 1.4% |
| Isc | 13.42 A | 13.35 A | 0.5% |
| Impp | 12.75 A | 12.62 A | 1.0% |
| TcVoc | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.3 %/°C | ±0.000 %/°C |
425 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.61 V | 38.67 V | 0.2% |
| Vmpp | 32.55 V | 32.98 V | 1.3% |
| Isc | 13.42 A | 13.49 A | 0.5% |
| Impp | 12.75 A | 12.88 A | 1.0% |
| TcVoc | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.3 %/°C | ±0.000 %/°C |
420 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.61 V | 38.75 V | 0.4% |
| Vmpp | 32.55 V | 32.54 V | 0.0% |
| Isc | 13.42 A | 13.58 A | 1.2% |
| Impp | 12.75 A | 12.91 A | 1.3% |
| TcVoc | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
415 W
HPBC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.61 V | 38.83 V | 0.6% |
| Vmpp | 32.55 V | 32.56 V | 0.0% |
| Isc | 13.42 A | 13.78 A | 2.7% |
| Impp | 12.75 A | 12.75 A | 0.0% |
| TcVoc | -0.24 %/°C | -0.23 %/°C | ±0.010 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
420 W
HPBC| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.61 V | 38.73 V | 0.3% |
| Vmpp | 32.55 V | 32.44 V | 0.3% |
| Isc | 13.42 A | 14 A | 4.3% |
| Impp | 12.75 A | 12.95 A | 1.6% |
| TcVoc | -0.24 %/°C | -0.23 %/°C | ±0.010 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
425 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.61 V | 39.03 V | 1.1% |
| Vmpp | 32.55 V | 32.74 V | 0.6% |
| Isc | 13.42 A | 13.66 A | 1.8% |
| Impp | 12.75 A | 12.98 A | 1.8% |
| TcVoc | -0.24 %/°C | -0.24 %/°C | ±0.000 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
420 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.61 V | 38.5 V | 0.3% |
| Vmpp | 32.55 V | 32.16 V | 1.2% |
| Isc | 13.42 A | 13.8 A | 2.8% |
| Impp | 12.75 A | 13.06 A | 2.4% |
| TcVoc | -0.24 %/°C | -0.25 %/°C | ±0.010 %/°C |
| TcPmax | -0.3 %/°C | -0.29 %/°C | ±0.010 %/°C |
435 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.61 V | 38.4 V | 0.5% |
| Vmpp | 32.55 V | 32.5 V | 0.2% |
| Isc | 13.42 A | 14.18 A | 5.7% |
| Impp | 12.75 A | 13.39 A | 5.0% |
| TcVoc | -0.24 %/°C | -0.25 %/°C | ±0.010 %/°C |
| TcPmax | -0.3 %/°C | -0.3 %/°C | ±0.000 %/°C |
435 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.61 V | 38.71 V | 0.3% |
| Vmpp | 32.55 V | 32.54 V | 0.0% |
| Isc | 13.42 A | 14.17 A | 5.6% |
| Impp | 12.75 A | 13.37 A | 4.9% |
| TcVoc | -0.24 %/°C | -0.26 %/°C | ±0.020 %/°C |
| TcPmax | -0.3 %/°C | -0.3 %/°C | ±0.000 %/°C |
435 W
TOPCon| Parameter | Original | Replacement | Deviation |
|---|---|---|---|
| Voc | 38.61 V | 38.51 V | 0.3% |
| Vmpp | 32.55 V | 32.54 V | 0.0% |
| Isc | 13.42 A | 14.17 A | 5.6% |
| Impp | 12.75 A | 13.37 A | 4.9% |
| TcVoc | -0.24 %/°C | -0.26 %/°C | ±0.020 %/°C |
| TcPmax | -0.3 %/°C | -0.3 %/°C | ±0.000 %/°C |
String Compatibility Calculator
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Panel Matcher
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How the Algorithm Works
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Voc
38.61 V
Vmpp
32.55 V
Isc
13.42 A
Impp
12.75 A
TcVoc
-0.24 %/°C
TcPmax
-0.3 %/°C
Pmax
415 W
Cells
108
Length
1692 mm
Width
1134 mm
Thickness
32 mm
Weight
21.5 kg
The Qcells Q.TRON BLK M-G2+ 415 (405-425 W) is a 415 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 |
|---|---|---|---|
| Q.TRON BLK M-G2+ 405 (405-425 W) | 405 W | 38.56 V | 13.35 A |
| Q.TRON BLK M-G2+ 410 (405-425 W) | 410 W | 38.58 V | 13.39 A |
| Q.TRON BLK M-G2+ 420 (405-425 W) | 420 W | 38.64 V | 13.46 A |
| Q.TRON BLK M-G2+ 425 (405-425 W) | 425 W | 38.67 V | 13.49 A |
The most critical specs to match are: cell count (must be exactly 108), Voc close to 38.61 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 Qcells Q.TRON BLK M-G2+ 415 (405-425 W).