Find replacement for Sun Earth DXM8-66H 540W

540 W TOPCon solar panel with 132 cells. Voc 47.4 V · Isc 14.49 A · TcVoc -0.23%/°C.

Original Panel

Select the panel you want to replace

Same technology onlyShow only panels with matching cell technology

Compatible Replacements

24 panels found · 4315 panels excluded

Sun Earth DXM8-66H 550W

550 W

TOPCon

85Good match

Parameter	Original	Replacement	Deviation
Voc	47.4 V	47.8 V	0.8%
Vmpp	39.1 V	39.3 V	0.5%
Isc	14.49 A	14.62 A	0.9%
Impp	13.81 A	13.99 A	1.3%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Sun Earth DXM8-66H 530W

530 W

TOPCon

84Good match

Parameter	Original	Replacement	Deviation
Voc	47.4 V	47 V	0.8%
Vmpp	39.1 V	38.9 V	0.5%
Isc	14.49 A	14.35 A	1.0%
Impp	13.81 A	13.62 A	1.4%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Horay Solar HS540TC-MHA

540 W

TOPCon

79Acceptable

Parameter	Original	Replacement	Deviation
Voc	47.4 V	47.68 V	0.6%
Vmpp	39.1 V	39.79 V	1.8%
Isc	14.49 A	14.34 A	1.0%
Impp	13.81 A	13.57 A	1.7%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Horay Solar HS550TC-MHB

550 W

TOPCon

78Acceptable

Parameter	Original	Replacement	Deviation
Voc	47.4 V	47.55 V	0.3%
Vmpp	39.1 V	40.33 V	3.1%
Isc	14.49 A	14.52 A	0.2%
Impp	13.81 A	13.64 A	1.2%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Sun Earth DXM8-66H 555W

555 W

TOPCon

77Acceptable

Parameter	Original	Replacement	Deviation
Voc	47.4 V	48 V	1.3%
Vmpp	39.1 V	39.4 V	0.8%
Isc	14.49 A	14.69 A	1.4%
Impp	13.81 A	14.09 A	2.0%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Horay Solar HS545TC-MHA

545 W

TOPCon

73Acceptable

Parameter	Original	Replacement	Deviation
Voc	47.4 V	47.88 V	1.0%
Vmpp	39.1 V	39.96 V	2.2%
Isc	14.49 A	14.41 A	0.6%
Impp	13.81 A	13.64 A	1.2%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Horay Solar HS555TC-MHB

555 W

TOPCon

70Acceptable

Parameter	Original	Replacement	Deviation
Voc	47.4 V	47.76 V	0.8%
Vmpp	39.1 V	40.52 V	3.6%
Isc	14.49 A	14.59 A	0.7%
Impp	13.81 A	13.7 A	0.8%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Sun Earth DXM8-66H 520W

520 W

TOPCon

69Acceptable

Parameter	Original	Replacement	Deviation
Voc	47.4 V	46.6 V	1.7%
Vmpp	39.1 V	38.7 V	1.0%
Isc	14.49 A	14.2 A	2.0%
Impp	13.81 A	13.44 A	2.7%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Horay Solar HS550TC-MHA

550 W

TOPCon

68Acceptable

Parameter	Original	Replacement	Deviation
Voc	47.4 V	48.07 V	1.4%
Vmpp	39.1 V	40.11 V	2.6%
Isc	14.49 A	14.48 A	0.1%
Impp	13.81 A	13.71 A	0.7%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Horay Solar HS530TC-MHO

530 W

TOPCon

67Acceptable

Parameter	Original	Replacement	Deviation
Voc	47.4 V	47.81 V	0.9%
Vmpp	39.1 V	40.24 V	2.9%
Isc	14.49 A	14.22 A	1.9%
Impp	13.81 A	13.17 A	4.6%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Horay Solar HS560TC-MHB

560 W

TOPCon

62Acceptable

Parameter	Original	Replacement	Deviation
Voc	47.4 V	47.98 V	1.2%
Vmpp	39.1 V	40.7 V	4.1%
Isc	14.49 A	14.65 A	1.1%
Impp	13.81 A	13.76 A	0.4%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Horay Solar HS535TC-MHO

535 W

TOPCon

60Acceptable

Parameter	Original	Replacement	Deviation
Voc	47.4 V	48.04 V	1.4%
Vmpp	39.1 V	40.44 V	3.4%
Isc	14.49 A	14.29 A	1.4%
Impp	13.81 A	13.23 A	4.2%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

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

Original Panel Specs

Voc

47.4 V

Vmpp

39.1 V

Isc

14.49 A

Impp

13.81 A

TcVoc

-0.23 %/°C

TcPmax

-0.29 %/°C

Pmax

540 W

Cells

132

Length

2094 mm

Width

1134 mm

Thickness

30 mm

Weight

25 kg

The Sun Earth DXM8-66H 540W is a 540 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.

Other models in this series

Model	Power	Voc	Isc
DXM8-66H 510W	510 W	46.2 V	14.05 A
DXM8-66H 520W	520 W	46.6 V	14.2 A
DXM8-66H 530W	530 W	47 V	14.35 A
DXM8-66H 550W	550 W	47.8 V	14.62 A
DXM8-66H 555W	555 W	48 V	14.69 A

Frequently Asked Questions

What specs must match when replacing the Sun Earth DXM8-66H 540W?

The most critical specs to match are: cell count (must be exactly 132), Voc close to 47.4 V (within ±5%), and temperature coefficient TcVoc close to -0.23%/°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.

Can I use a higher wattage replacement for the Sun Earth DXM8-66H 540W?

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.

What happens if the replacement panel has different voltage specs?

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 Sun Earth DXM8-66H 540W.

All replacements

Find replacement for Sun Earth DXM8-66H 540W

540 W TOPCon solar panel with 132 cells. Voc 47.4 V · Isc 14.49 A · TcVoc -0.23%/°C.

Original Panel

Select the panel you want to replace

Same technology onlyShow only panels with matching cell technology

Compatible Replacements

24 panels found · 4315 panels excluded

Sun Earth DXM8-66H 550W

550 W

TOPCon

85Good match

Parameter	Original	Replacement	Deviation
Voc	47.4 V	47.8 V	0.8%
Vmpp	39.1 V	39.3 V	0.5%
Isc	14.49 A	14.62 A	0.9%
Impp	13.81 A	13.99 A	1.3%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Sun Earth DXM8-66H 530W

530 W

TOPCon

84Good match

Parameter	Original	Replacement	Deviation
Voc	47.4 V	47 V	0.8%
Vmpp	39.1 V	38.9 V	0.5%
Isc	14.49 A	14.35 A	1.0%
Impp	13.81 A	13.62 A	1.4%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Horay Solar HS540TC-MHA

540 W

TOPCon

79Acceptable

Parameter	Original	Replacement	Deviation
Voc	47.4 V	47.68 V	0.6%
Vmpp	39.1 V	39.79 V	1.8%
Isc	14.49 A	14.34 A	1.0%
Impp	13.81 A	13.57 A	1.7%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Horay Solar HS550TC-MHB

550 W

TOPCon

78Acceptable

Parameter	Original	Replacement	Deviation
Voc	47.4 V	47.55 V	0.3%
Vmpp	39.1 V	40.33 V	3.1%
Isc	14.49 A	14.52 A	0.2%
Impp	13.81 A	13.64 A	1.2%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Sun Earth DXM8-66H 555W

555 W

TOPCon

77Acceptable

Parameter	Original	Replacement	Deviation
Voc	47.4 V	48 V	1.3%
Vmpp	39.1 V	39.4 V	0.8%
Isc	14.49 A	14.69 A	1.4%
Impp	13.81 A	14.09 A	2.0%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Horay Solar HS545TC-MHA

545 W

TOPCon

73Acceptable

Parameter	Original	Replacement	Deviation
Voc	47.4 V	47.88 V	1.0%
Vmpp	39.1 V	39.96 V	2.2%
Isc	14.49 A	14.41 A	0.6%
Impp	13.81 A	13.64 A	1.2%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Horay Solar HS555TC-MHB

555 W

TOPCon

70Acceptable

Parameter	Original	Replacement	Deviation
Voc	47.4 V	47.76 V	0.8%
Vmpp	39.1 V	40.52 V	3.6%
Isc	14.49 A	14.59 A	0.7%
Impp	13.81 A	13.7 A	0.8%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Sun Earth DXM8-66H 520W

520 W

TOPCon

69Acceptable

Parameter	Original	Replacement	Deviation
Voc	47.4 V	46.6 V	1.7%
Vmpp	39.1 V	38.7 V	1.0%
Isc	14.49 A	14.2 A	2.0%
Impp	13.81 A	13.44 A	2.7%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Horay Solar HS550TC-MHA

550 W

TOPCon

68Acceptable

Parameter	Original	Replacement	Deviation
Voc	47.4 V	48.07 V	1.4%
Vmpp	39.1 V	40.11 V	2.6%
Isc	14.49 A	14.48 A	0.1%
Impp	13.81 A	13.71 A	0.7%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Horay Solar HS530TC-MHO

530 W

TOPCon

67Acceptable

Parameter	Original	Replacement	Deviation
Voc	47.4 V	47.81 V	0.9%
Vmpp	39.1 V	40.24 V	2.9%
Isc	14.49 A	14.22 A	1.9%
Impp	13.81 A	13.17 A	4.6%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Horay Solar HS560TC-MHB

560 W

TOPCon

62Acceptable

Parameter	Original	Replacement	Deviation
Voc	47.4 V	47.98 V	1.2%
Vmpp	39.1 V	40.7 V	4.1%
Isc	14.49 A	14.65 A	1.1%
Impp	13.81 A	13.76 A	0.4%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Horay Solar HS535TC-MHO

535 W

TOPCon

60Acceptable

Parameter	Original	Replacement	Deviation
Voc	47.4 V	48.04 V	1.4%
Vmpp	39.1 V	40.44 V	3.4%
Isc	14.49 A	14.29 A	1.4%
Impp	13.81 A	13.23 A	4.2%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

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

Original Panel Specs

Voc

47.4 V

Vmpp

39.1 V

Isc

14.49 A

Impp

13.81 A

TcVoc

-0.23 %/°C

TcPmax

-0.29 %/°C

Pmax

540 W

Cells

132

Length

2094 mm

Width

1134 mm

Thickness

30 mm

Weight

25 kg

Use the form above to find panels that match these specifications. Then verify the replacement in the String Compatibility Calculator with your inverter.

Other models in this series

Model	Power	Voc	Isc
DXM8-66H 510W	510 W	46.2 V	14.05 A
DXM8-66H 520W	520 W	46.6 V	14.2 A
DXM8-66H 530W	530 W	47 V	14.35 A
DXM8-66H 550W	550 W	47.8 V	14.62 A
DXM8-66H 555W	555 W	48 V	14.69 A