450 W TOPCon solar panel with 108 cells. Voc 39.8 V · Isc 14 A · TcVoc -0.25%/°C.
Select the panel you want to replace
Panel not in the catalogue?
181 of the 4,444 panels in the catalogue can replace Solarwatt Panel vision M 5.0 black 450 Wp. Before you buy, check your pick in the string calculator with your inverter.
CloseNoticeableLarge differenceTap or click a difference to see what it means for your string.
Near-identical electrics — a drop-in swap for the same string.
Match 99–100 % · 3 models
Small differences within tolerance — safe once verified in the calculator with your inverter.
Match 80–92 % · 20 models
Noticeable differences — the string voltage and current need a careful check.
Match 60–79 % · 106 models
Large differences — a real risk of a mismatched string; prefer a closer panel.
Match 28–58 % · 52 models
String Compatibility Calculator
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Panel Matcher
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How the Algorithm Works
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Voc
39.8 V
Vmpp
33.2 V
Isc
14 A
Impp
13.5 A
TcVoc
-0.25 %/°C
TcPmax
-0.29 %/°C
Pmax
450 W
Cells
108
Length
1762 mm
Width
1134 mm
Thickness
35 mm
Weight
24.8 kg
The Solarwatt Panel vision M 5.0 black 450 Wp is a 450 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 |
|---|---|---|---|
| Panel vision M 5.0 black 445 Wp | 445 W | 39.6 V | 14 A |
| Panel vision M 5.0 black 455 Wp | 455 W | 40 V | 14.1 A |
The most critical specs to match are: cell count (must be exactly 108), Voc close to 39.8 V (within ±5%), and temperature coefficient TcVoc close to -0.25%/°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 Solarwatt Panel vision M 5.0 black 450 Wp.