535 W PERC solar panel with 144 cells. Voc 49.6 V · Isc 13.53 A · TcVoc -0.26%/°C.
Select the panel you want to replace
Panel not in the catalogue?
83 of the 4,444 panels in the catalogue can replace Sunway SW535M-144. 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 95 % · 2 models
Small differences within tolerance — safe once verified in the calculator with your inverter.
Match 81–89 % · 22 models
Noticeable differences — the string voltage and current need a careful check.
Match 61–79 % · 54 models
Large differences — a real risk of a mismatched string; prefer a closer panel.
Match 49–58 % · 5 models
String Compatibility Calculator
Verify the replacement panel works with your inverter
Panel Matcher
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How the Algorithm Works
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Voc
49.6 V
Vmpp
41.8 V
Isc
13.53 A
Impp
12.8 A
TcVoc
-0.26 %/°C
TcPmax
-0.36 %/°C
Pmax
535 W
Cells
144
Length
2279 mm
Width
1134 mm
Thickness
35 mm
Weight
29 kg
The Sunway SW535M-144 is a 535 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 |
|---|---|---|---|
| SW530M-144 | 530 W | 49.5 V | 13.44 A |
| SW540M-144 | 540 W | 49.7 V | 13.62 A |
| SW545M-144 | 545 W | 49.8 V | 13.71 A |
| SW550M-144 | 550 W | 49.9 V | 13.8 A |
The most critical specs to match are: cell count (must be exactly 144), Voc close to 49.6 V (within ±5%), and temperature coefficient TcVoc close to -0.26%/°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 Sunway SW535M-144.