Find replacement for RECOM RCM-665-8MM

665 W PERC solar panel with 132 cells. Voc 46.18 V · Isc 18.31 A · TcVoc -0.28%/°C.

Original Panel

Select the panel you want to replace

Same technology onlyShow only panels with matching cell technology

Compatible Replacements

19 panels found · 3681 panels excluded

RECOM RCM-660-8MM

660 W

PERC

92Good match

Parameter	Original	Replacement	Deviation
Voc	46.18 V	45.98 V	0.4%
Vmpp	38.21 V	38.01 V	0.5%
Isc	18.31 A	18.26 A	0.3%
Impp	17.4 A	17.36 A	0.2%
TcVoc	-0.28 %/°C	-0.28 %/°C	±0.000 %/°C
TcPmax	-0.36 %/°C	-0.36 %/°C	±0.000 %/°C

RECOM RCM-655-8MM

655 W

PERC

83Good match

Parameter	Original	Replacement	Deviation
Voc	46.18 V	45.78 V	0.9%
Vmpp	38.21 V	37.81 V	1.0%
Isc	18.31 A	18.21 A	0.5%
Impp	17.4 A	17.32 A	0.5%
TcVoc	-0.28 %/°C	-0.28 %/°C	±0.000 %/°C
TcPmax	-0.36 %/°C	-0.36 %/°C	±0.000 %/°C

Luxor Solar LX-670M/210-132+ SW HC

670 W

PERC

80Good match

Parameter	Original	Replacement	Deviation
Voc	46.18 V	45.67 V	1.1%
Vmpp	38.21 V	38.36 V	0.4%
Isc	18.31 A	18.45 A	0.8%
Impp	17.4 A	17.47 A	0.4%
TcVoc	-0.28 %/°C	-0.285 %/°C	±0.005 %/°C
TcPmax	-0.36 %/°C	-0.36 %/°C	±0.000 %/°C

RECOM RCM-650-8MM

650 W

PERC

75Acceptable

Parameter	Original	Replacement	Deviation
Voc	46.18 V	45.58 V	1.3%
Vmpp	38.21 V	37.61 V	1.6%
Isc	18.31 A	18.16 A	0.8%
Impp	17.4 A	17.28 A	0.7%
TcVoc	-0.28 %/°C	-0.28 %/°C	±0.000 %/°C
TcPmax	-0.36 %/°C	-0.36 %/°C	±0.000 %/°C

Yingli Solar YL670D-66f 1/2

670 W

PERC

74Acceptable

Parameter	Original	Replacement	Deviation
Voc	46.18 V	46.1 V	0.2%
Vmpp	38.21 V	38.3 V	0.2%
Isc	18.31 A	18.58 A	1.5%
Impp	17.4 A	17.5 A	0.6%
TcVoc	-0.28 %/°C	-0.25 %/°C	±0.030 %/°C
TcPmax	-0.36 %/°C	-0.34 %/°C	±0.020 %/°C

Luxor Solar LX-665M/210-132+ SW HC

665 W

PERC

73Acceptable

Parameter	Original	Replacement	Deviation
Voc	46.18 V	45.36 V	1.8%
Vmpp	38.21 V	38.11 V	0.3%
Isc	18.31 A	18.44 A	0.7%
Impp	17.4 A	17.46 A	0.3%
TcVoc	-0.28 %/°C	-0.285 %/°C	±0.005 %/°C
TcPmax	-0.36 %/°C	-0.36 %/°C	±0.000 %/°C

Canadian Solar CS7N-675MS

675 W

PERC

69Acceptable

Parameter	Original	Replacement	Deviation
Voc	46.18 V	46 V	0.4%
Vmpp	38.21 V	38.9 V	1.8%
Isc	18.31 A	18.59 A	1.5%
Impp	17.4 A	17.36 A	0.2%
TcVoc	-0.28 %/°C	-0.26 %/°C	±0.020 %/°C
TcPmax	-0.36 %/°C	-0.34 %/°C	±0.020 %/°C

Yingli Solar YL665D-66f 1/2

665 W

PERC

69Acceptable

Parameter	Original	Replacement	Deviation
Voc	46.18 V	45.9 V	0.6%
Vmpp	38.21 V	38.1 V	0.3%
Isc	18.31 A	18.54 A	1.3%
Impp	17.4 A	17.46 A	0.3%
TcVoc	-0.28 %/°C	-0.25 %/°C	±0.030 %/°C
TcPmax	-0.36 %/°C	-0.34 %/°C	±0.020 %/°C

Luxor Solar LX-660M/210-132+ SW HC

660 W

PERC

67Acceptable

Parameter	Original	Replacement	Deviation
Voc	46.18 V	45.06 V	2.4%
Vmpp	38.21 V	37.85 V	0.9%
Isc	18.31 A	18.42 A	0.6%
Impp	17.4 A	17.44 A	0.2%
TcVoc	-0.28 %/°C	-0.285 %/°C	±0.005 %/°C
TcPmax	-0.36 %/°C	-0.36 %/°C	±0.000 %/°C

Canadian Solar CS7N-670MS

670 W

PERC

67Acceptable

Parameter	Original	Replacement	Deviation
Voc	46.18 V	45.8 V	0.8%
Vmpp	38.21 V	38.7 V	1.3%
Isc	18.31 A	18.55 A	1.3%
Impp	17.4 A	17.32 A	0.5%
TcVoc	-0.28 %/°C	-0.26 %/°C	±0.020 %/°C
TcPmax	-0.36 %/°C	-0.34 %/°C	±0.020 %/°C

Canadian Solar CS7N-665MS

665 W

PERC

64Acceptable

Parameter	Original	Replacement	Deviation
Voc	46.18 V	45.6 V	1.3%
Vmpp	38.21 V	38.5 V	0.8%
Isc	18.31 A	18.51 A	1.1%
Impp	17.4 A	17.28 A	0.7%
TcVoc	-0.28 %/°C	-0.26 %/°C	±0.020 %/°C
TcPmax	-0.36 %/°C	-0.34 %/°C	±0.020 %/°C

Yingli Solar YL660D-66f 1/2

660 W

PERC

62Acceptable

Parameter	Original	Replacement	Deviation
Voc	46.18 V	45.7 V	1.0%
Vmpp	38.21 V	37.9 V	0.8%
Isc	18.31 A	18.48 A	0.9%
Impp	17.4 A	17.42 A	0.1%
TcVoc	-0.28 %/°C	-0.25 %/°C	±0.030 %/°C
TcPmax	-0.36 %/°C	-0.34 %/°C	±0.020 %/°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

46.18 V

Vmpp

38.21 V

Isc

18.31 A

Impp

17.4 A

TcVoc

-0.28 %/°C

TcPmax

-0.36 %/°C

Pmax

665 W

Cells

132

Length

2384 mm

Width

1303 mm

Thickness

35 mm

Weight

34 kg

The RECOM RCM-665-8MM is a 665 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

Power	Voc	Isc
650 W	45.58 V	18.16 A
655 W	45.78 V	18.21 A
660 W	45.98 V	18.26 A

Frequently Asked Questions

What specs must match when replacing the RECOM RCM-665-8MM?

The most critical specs to match are: cell count (must be exactly 132), Voc close to 46.18 V (within ±5%), and temperature coefficient TcVoc close to -0.28%/°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 RECOM RCM-665-8MM?

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 RECOM RCM-665-8MM.