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All replacements

Find replacement for LONGi LR8-66HGD-600M

600 W HPBC solar panel with 132 cells. Voc 47.98 V · Isc 15.85 A · TcVoc -0.23%/°C.

Select the panel you want to replace

Show only panels with matching cell technology

Compatible Replacements

124 panels found · 4215 panels excluded

LONGi LR8-66HGD-595M

595 W

HPBC
92Good match
ParameterOriginalReplacementDeviation
Voc47.98 V47.78 V0.4%
Vmpp40.11 V39.91 V0.5%
Isc15.85 A15.8 A0.3%
Impp14.96 A14.91 A0.3%
TcVoc-0.23 %/°C-0.23 %/°C±0.000 %/°C
TcPmax-0.28 %/°C-0.28 %/°C±0.000 %/°C
LONGi LR8-66HGD-605M

605 W

HPBC
92Good match
ParameterOriginalReplacementDeviation
Voc47.98 V48.18 V0.4%
Vmpp40.11 V40.31 V0.5%
Isc15.85 A15.9 A0.3%
Impp14.96 A15.01 A0.3%
TcVoc-0.23 %/°C-0.23 %/°C±0.000 %/°C
TcPmax-0.28 %/°C-0.28 %/°C±0.000 %/°C
Hanersun HN21RN-66HT600W

600 W

TOPCon
89Good match
ParameterOriginalReplacementDeviation
Voc47.98 V48.32 V0.7%
Vmpp40.11 V40.23 V0.3%
Isc15.85 A15.82 A0.2%
Impp14.96 A14.92 A0.3%
TcVoc-0.23 %/°C-0.23 %/°C±0.000 %/°C
TcPmax-0.28 %/°C-0.28 %/°C±0.000 %/°C
LONGi LR8-66HGD-610M

610 W

HPBC
84Good match
ParameterOriginalReplacementDeviation
Voc47.98 V48.38 V0.8%
Vmpp40.11 V40.51 V1.0%
Isc15.85 A15.95 A0.6%
Impp14.96 A15.06 A0.7%
TcVoc-0.23 %/°C-0.23 %/°C±0.000 %/°C
TcPmax-0.28 %/°C-0.28 %/°C±0.000 %/°C
Horay Solar HS580TC-MHD-D

580 W

TOPCon
82Good match
ParameterOriginalReplacementDeviation
Voc47.98 V47.98 V0.0%
Vmpp40.11 V40.7 V1.5%
Isc15.85 A15.18 A4.2%
Impp14.96 A14.25 A4.7%
TcVoc-0.23 %/°C-0.23 %/°C±0.000 %/°C
TcPmax-0.28 %/°C-0.28 %/°C±0.000 %/°C
Hanersun HN21RN-66HT605W

605 W

TOPCon
82Good match
ParameterOriginalReplacementDeviation
Voc47.98 V48.52 V1.1%
Vmpp40.11 V40.41 V0.7%
Isc15.85 A15.88 A0.2%
Impp14.96 A14.98 A0.1%
TcVoc-0.23 %/°C-0.23 %/°C±0.000 %/°C
TcPmax-0.28 %/°C-0.28 %/°C±0.000 %/°C
Horay Solar HS590TC-MHD-D

590 W

TOPCon
82Good match
ParameterOriginalReplacementDeviation
Voc47.98 V48.08 V0.2%
Vmpp40.11 V40.79 V1.7%
Isc15.85 A15.41 A2.8%
Impp14.96 A14.47 A3.3%
TcVoc-0.23 %/°C-0.23 %/°C±0.000 %/°C
TcPmax-0.28 %/°C-0.28 %/°C±0.000 %/°C
Trina Solar TSM-NEG19RC.20-610

610 W

TOPCon
81Good match
ParameterOriginalReplacementDeviation
Voc47.98 V48.09 V0.2%
Vmpp40.11 V39.79 V0.8%
Isc15.85 A16.14 A1.8%
Impp14.96 A15.33 A2.5%
TcVoc-0.23 %/°C-0.24 %/°C±0.010 %/°C
TcPmax-0.28 %/°C-0.29 %/°C±0.010 %/°C
Horay Solar HS585TC-MHD-D

585 W

TOPCon
81Good match
ParameterOriginalReplacementDeviation
Voc47.98 V48.05 V0.1%
Vmpp40.11 V40.76 V1.6%
Isc15.85 A15.29 A3.5%
Impp14.96 A14.35 A4.1%
TcVoc-0.23 %/°C-0.23 %/°C±0.000 %/°C
TcPmax-0.28 %/°C-0.28 %/°C±0.000 %/°C
TCL Zhonghuan TCL-MI605DT210RP-66NS

605 W

TOPCon
80Good match
ParameterOriginalReplacementDeviation
Voc47.98 V47.9 V0.2%
Vmpp40.11 V40.5 V1.0%
Isc15.85 A15.79 A0.4%
Impp14.96 A14.94 A0.1%
TcVoc-0.23 %/°C-0.25 %/°C±0.020 %/°C
TcPmax-0.28 %/°C-0.29 %/°C±0.010 %/°C
JinkoSolar JKM600N-66HL4M-BDV

600 W

TOPCon
79Acceptable
ParameterOriginalReplacementDeviation
Voc47.98 V48.28 V0.6%
Vmpp40.11 V40.16 V0.1%
Isc15.85 A15.84 A0.1%
Impp14.96 A14.94 A0.1%
TcVoc-0.23 %/°C-0.25 %/°C±0.020 %/°C
TcPmax-0.28 %/°C-0.29 %/°C±0.010 %/°C
Canadian Solar CS6.2-66TB-610

610 W

TOPCon
78Acceptable
ParameterOriginalReplacementDeviation
Voc47.98 V48 V0.0%
Vmpp40.11 V40.8 V1.7%
Isc15.85 A15.97 A0.8%
Impp14.96 A14.96 A0.0%
TcVoc-0.23 %/°C-0.25 %/°C±0.020 %/°C
TcPmax-0.28 %/°C-0.29 %/°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

47.98 V

Vmpp

40.11 V

Isc

15.85 A

Impp

14.96 A

TcVoc

-0.23 %/°C

TcPmax

-0.28 %/°C

Pmax

600 W

Cells

132

Bifaciality

80%

Length

2382 mm

Width

1134 mm

Thickness

30 mm

Weight

33.5 kg

The LONGi LR8-66HGD-600M is a 600 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

ModelPowerVocIsc
LR8-66HGD-595M595 W47.78 V15.8 A
LR8-66HGD-605M605 W48.18 V15.9 A
LR8-66HGD-610M610 W48.38 V15.95 A
LR8-66HGD-615M615 W48.58 V16 A
LR8-66HGD-620M620 W48.78 V16.05 A
LR8-66HGD-625M625 W48.98 V16.1 A

Frequently Asked Questions

What specs must match when replacing the LONGi LR8-66HGD-600M?

The most critical specs to match are: cell count (must be exactly 132), Voc close to 47.98 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 LONGi LR8-66HGD-600M?

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 LONGi LR8-66HGD-600M.