Find replacement for Sun Earth DXM12-66HBG 730W

730 W TOPCon solar panel with 132 cells. Voc 49.99 V · Isc 18.21 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

150 panels found · 4189 panels excluded

Sun Earth DXM12-66HBG 720W

720 W

TOPCon

86Good match

Parameter	Original	Replacement	Deviation
Voc	49.99 V	49.65 V	0.7%
Vmpp	42.4 V	42 V	0.9%
Isc	18.21 A	18.15 A	0.3%
Impp	17.22 A	17.15 A	0.4%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Sun Earth DXM12-66HBG 740W

740 W

TOPCon

86Good match

Parameter	Original	Replacement	Deviation
Voc	49.99 V	50.33 V	0.7%
Vmpp	42.4 V	42.8 V	0.9%
Isc	18.21 A	18.27 A	0.3%
Impp	17.22 A	17.29 A	0.4%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Trina Solar TSM-NEG21C.20-735

735 W

TOPCon

81Good match

Parameter	Original	Replacement	Deviation
Voc	49.99 V	50.1 V	0.2%
Vmpp	42.4 V	41.9 V	1.2%
Isc	18.21 A	18.62 A	2.3%
Impp	17.22 A	17.55 A	1.9%
TcVoc	-0.23 %/°C	-0.24 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Horay Solar HS730TC-MHG-D

730 W

TOPCon

81Good match

Parameter	Original	Replacement	Deviation
Voc	49.99 V	49.8 V	0.4%
Vmpp	42.4 V	41.7 V	1.7%
Isc	18.21 A	18.56 A	1.9%
Impp	17.22 A	17.51 A	1.7%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Trina Solar TSM-NEG21C.20-730

730 W

TOPCon

80Good match

Parameter	Original	Replacement	Deviation
Voc	49.99 V	49.9 V	0.2%
Vmpp	42.4 V	41.7 V	1.7%
Isc	18.21 A	18.58 A	2.0%
Impp	17.22 A	17.51 A	1.7%
TcVoc	-0.23 %/°C	-0.24 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Trina Solar TSM-NEG21C.20-740

740 W

TOPCon

78Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.99 V	50.3 V	0.6%
Vmpp	42.4 V	42.1 V	0.7%
Isc	18.21 A	18.66 A	2.5%
Impp	17.22 A	17.58 A	2.1%
TcVoc	-0.23 %/°C	-0.24 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Tongwei TWMNF-66HD745

745 W

TOPCon

77Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.99 V	49.95 V	0.1%
Vmpp	42.4 V	41.86 V	1.3%
Isc	18.21 A	18.87 A	3.6%
Impp	17.22 A	17.8 A	3.4%
TcVoc	-0.23 %/°C	-0.24 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Tongwei TWMNF-66HD750

750 W

TOPCon

76Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.99 V	50.1 V	0.2%
Vmpp	42.4 V	42.02 V	0.9%
Isc	18.21 A	18.93 A	4.0%
Impp	17.22 A	17.85 A	3.7%
TcVoc	-0.23 %/°C	-0.24 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Risen RSM132-8-720BHDG

720 W

HJT

74Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.99 V	50.18 V	0.4%
Vmpp	42.4 V	42.08 V	0.8%
Isc	18.21 A	18.19 A	0.1%
Impp	17.22 A	17.13 A	0.5%
TcVoc	-0.23 %/°C	-0.22 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.24 %/°C	±0.050 %/°C

Risen RSM132-8-715BHDG

715 W

HJT

74Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.99 V	50.09 V	0.2%
Vmpp	42.4 V	42 V	0.9%
Isc	18.21 A	18.1 A	0.6%
Impp	17.22 A	17.05 A	1.0%
TcVoc	-0.23 %/°C	-0.22 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.24 %/°C	±0.050 %/°C

Horay Solar HS725TC-MHG-D

725 W

TOPCon

74Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.99 V	49.6 V	0.8%
Vmpp	42.4 V	41.5 V	2.1%
Isc	18.21 A	18.52 A	1.7%
Impp	17.22 A	17.47 A	1.5%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Phono Solar PS710M13GFH-22/WSHW

710 W

HJT

74Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.99 V	50.01 V	0.0%
Vmpp	42.4 V	41.99 V	1.0%
Isc	18.21 A	17.97 A	1.3%
Impp	17.22 A	16.91 A	1.8%
TcVoc	-0.23 %/°C	-0.22 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.24 %/°C	±0.050 %/°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

49.99 V

Vmpp

42.4 V

Isc

18.21 A

Impp

17.22 A

TcVoc

-0.23 %/°C

TcPmax

-0.29 %/°C

Pmax

730 W

Cells

132

Bifaciality

80%

Length

2384 mm

Width

1303 mm

Thickness

30 mm

Weight

38 kg

The Sun Earth DXM12-66HBG 730W is a 730 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
DXM12-66HBG 700W	700 W	48.87 V	18.03 A
DXM12-66HBG 705W	705 W	49.04 V	18.06 A
DXM12-66HBG 710W	710 W	49.21 V	18.09 A
DXM12-66HBG 720W	720 W	49.65 V	18.15 A
DXM12-66HBG 740W	740 W	50.33 V	18.27 A

Frequently Asked Questions

What specs must match when replacing the Sun Earth DXM12-66HBG 730W?

The most critical specs to match are: cell count (must be exactly 132), Voc close to 49.99 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 DXM12-66HBG 730W?

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 DXM12-66HBG 730W.

All replacements

Find replacement for Sun Earth DXM12-66HBG 730W

730 W TOPCon solar panel with 132 cells. Voc 49.99 V · Isc 18.21 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

150 panels found · 4189 panels excluded

Sun Earth DXM12-66HBG 720W

720 W

TOPCon

86Good match

Parameter	Original	Replacement	Deviation
Voc	49.99 V	49.65 V	0.7%
Vmpp	42.4 V	42 V	0.9%
Isc	18.21 A	18.15 A	0.3%
Impp	17.22 A	17.15 A	0.4%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Sun Earth DXM12-66HBG 740W

740 W

TOPCon

86Good match

Parameter	Original	Replacement	Deviation
Voc	49.99 V	50.33 V	0.7%
Vmpp	42.4 V	42.8 V	0.9%
Isc	18.21 A	18.27 A	0.3%
Impp	17.22 A	17.29 A	0.4%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Trina Solar TSM-NEG21C.20-735

735 W

TOPCon

81Good match

Parameter	Original	Replacement	Deviation
Voc	49.99 V	50.1 V	0.2%
Vmpp	42.4 V	41.9 V	1.2%
Isc	18.21 A	18.62 A	2.3%
Impp	17.22 A	17.55 A	1.9%
TcVoc	-0.23 %/°C	-0.24 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Horay Solar HS730TC-MHG-D

730 W

TOPCon

81Good match

Parameter	Original	Replacement	Deviation
Voc	49.99 V	49.8 V	0.4%
Vmpp	42.4 V	41.7 V	1.7%
Isc	18.21 A	18.56 A	1.9%
Impp	17.22 A	17.51 A	1.7%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Trina Solar TSM-NEG21C.20-730

730 W

TOPCon

80Good match

Parameter	Original	Replacement	Deviation
Voc	49.99 V	49.9 V	0.2%
Vmpp	42.4 V	41.7 V	1.7%
Isc	18.21 A	18.58 A	2.0%
Impp	17.22 A	17.51 A	1.7%
TcVoc	-0.23 %/°C	-0.24 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Trina Solar TSM-NEG21C.20-740

740 W

TOPCon

78Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.99 V	50.3 V	0.6%
Vmpp	42.4 V	42.1 V	0.7%
Isc	18.21 A	18.66 A	2.5%
Impp	17.22 A	17.58 A	2.1%
TcVoc	-0.23 %/°C	-0.24 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Tongwei TWMNF-66HD745

745 W

TOPCon

77Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.99 V	49.95 V	0.1%
Vmpp	42.4 V	41.86 V	1.3%
Isc	18.21 A	18.87 A	3.6%
Impp	17.22 A	17.8 A	3.4%
TcVoc	-0.23 %/°C	-0.24 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Tongwei TWMNF-66HD750

750 W

TOPCon

76Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.99 V	50.1 V	0.2%
Vmpp	42.4 V	42.02 V	0.9%
Isc	18.21 A	18.93 A	4.0%
Impp	17.22 A	17.85 A	3.7%
TcVoc	-0.23 %/°C	-0.24 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Risen RSM132-8-720BHDG

720 W

HJT

74Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.99 V	50.18 V	0.4%
Vmpp	42.4 V	42.08 V	0.8%
Isc	18.21 A	18.19 A	0.1%
Impp	17.22 A	17.13 A	0.5%
TcVoc	-0.23 %/°C	-0.22 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.24 %/°C	±0.050 %/°C

Risen RSM132-8-715BHDG

715 W

HJT

74Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.99 V	50.09 V	0.2%
Vmpp	42.4 V	42 V	0.9%
Isc	18.21 A	18.1 A	0.6%
Impp	17.22 A	17.05 A	1.0%
TcVoc	-0.23 %/°C	-0.22 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.24 %/°C	±0.050 %/°C

Horay Solar HS725TC-MHG-D

725 W

TOPCon

74Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.99 V	49.6 V	0.8%
Vmpp	42.4 V	41.5 V	2.1%
Isc	18.21 A	18.52 A	1.7%
Impp	17.22 A	17.47 A	1.5%
TcVoc	-0.23 %/°C	-0.23 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.28 %/°C	±0.010 %/°C

Phono Solar PS710M13GFH-22/WSHW

710 W

HJT

74Acceptable

Parameter	Original	Replacement	Deviation
Voc	49.99 V	50.01 V	0.0%
Vmpp	42.4 V	41.99 V	1.0%
Isc	18.21 A	17.97 A	1.3%
Impp	17.22 A	16.91 A	1.8%
TcVoc	-0.23 %/°C	-0.22 %/°C	±0.010 %/°C
TcPmax	-0.29 %/°C	-0.24 %/°C	±0.050 %/°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

49.99 V

Vmpp

42.4 V

Isc

18.21 A

Impp

17.22 A

TcVoc

-0.23 %/°C

TcPmax

-0.29 %/°C

Pmax

730 W

Cells

132

Bifaciality

80%

Length

2384 mm

Width

1303 mm

Thickness

30 mm

Weight

38 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
DXM12-66HBG 700W	700 W	48.87 V	18.03 A
DXM12-66HBG 705W	705 W	49.04 V	18.06 A
DXM12-66HBG 710W	710 W	49.21 V	18.09 A
DXM12-66HBG 720W	720 W	49.65 V	18.15 A
DXM12-66HBG 740W	740 W	50.33 V	18.27 A