Find replacement for DAH Solar DHN-66Y18/DG-720W

720 W TOPCon solar panel with 132 cells. Voc 48.4 V · Isc 18.73 A · TcVoc -0.25%/°C.

Original Panel

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Same technology onlyShow only panels with matching cell technology

Compatible Replacements

116 panels found · 3584 panels excluded

United Energy UE720T-66HBD

720 W

TOPCon

100Exact match

Parameter	Original	Replacement	Deviation
Voc	48.4 V	48.4 V	0.0%
Vmpp	40.8 V	40.8 V	0.0%
Isc	18.73 A	18.73 A	0.0%
Impp	17.65 A	17.65 A	0.0%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

DAH Solar DHN-66Y18/DG(BW)-720W

720 W

TOPCon

100Exact match

Parameter	Original	Replacement	Deviation
Voc	48.4 V	48.4 V	0.0%
Vmpp	40.8 V	40.8 V	0.0%
Isc	18.73 A	18.73 A	0.0%
Impp	17.65 A	17.65 A	0.0%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Canadian Solar CS7N-715TB-AG

715 W

TOPCon

94Good match

Parameter	Original	Replacement	Deviation
Voc	48.4 V	48.5 V	0.2%
Vmpp	40.8 V	40.6 V	0.5%
Isc	18.73 A	18.64 A	0.5%
Impp	17.65 A	17.63 A	0.1%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Suntech STP720S-D66-Nsh+

720 W

TOPCon

93Good match

Parameter	Original	Replacement	Deviation
Voc	48.4 V	48.45 V	0.1%
Vmpp	40.8 V	40.45 V	0.9%
Isc	18.73 A	18.83 A	0.5%
Impp	17.65 A	17.81 A	0.9%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

DAH Solar DHN-66Y18/DG-715W

715 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	48.4 V	48.2 V	0.4%
Vmpp	40.8 V	40.6 V	0.5%
Isc	18.73 A	18.67 A	0.3%
Impp	17.65 A	17.61 A	0.2%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

DAH Solar DHN-66Y18/DG-725W

725 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	48.4 V	48.6 V	0.4%
Vmpp	40.8 V	41 V	0.5%
Isc	18.73 A	18.79 A	0.3%
Impp	17.65 A	17.68 A	0.2%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

United Energy UE715T-66HBD

715 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	48.4 V	48.2 V	0.4%
Vmpp	40.8 V	40.6 V	0.5%
Isc	18.73 A	18.67 A	0.3%
Impp	17.65 A	17.61 A	0.2%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

United Energy UE725T-66HBD

725 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	48.4 V	48.6 V	0.4%
Vmpp	40.8 V	41 V	0.5%
Isc	18.73 A	18.79 A	0.3%
Impp	17.65 A	17.68 A	0.2%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

DAH Solar DHN-66Y18/DG(BW)-715W

715 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	48.4 V	48.2 V	0.4%
Vmpp	40.8 V	40.6 V	0.5%
Isc	18.73 A	18.67 A	0.3%
Impp	17.65 A	17.61 A	0.2%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

DAH Solar DHN-66Y18/DG(BW)-725W

725 W

TOPCon

92Good match

Parameter	Original	Replacement	Deviation
Voc	48.4 V	48.6 V	0.4%
Vmpp	40.8 V	41 V	0.5%
Isc	18.73 A	18.79 A	0.3%
Impp	17.65 A	17.68 A	0.2%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

Canadian Solar CS7N-710TB-AG

710 W

TOPCon

91Good match

Parameter	Original	Replacement	Deviation
Voc	48.4 V	48.3 V	0.2%
Vmpp	40.8 V	40.4 V	1.0%
Isc	18.73 A	18.59 A	0.7%
Impp	17.65 A	17.59 A	0.3%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

JinkoSolar JKM700N-66HL5-BDV

700 W

TOPCon

91Good match

Parameter	Original	Replacement	Deviation
Voc	48.4 V	48.4 V	0.0%
Vmpp	40.8 V	40.42 V	0.9%
Isc	18.73 A	18.4 A	1.8%
Impp	17.65 A	17.32 A	1.9%
TcVoc	-0.25 %/°C	-0.25 %/°C	±0.000 %/°C
TcPmax	-0.29 %/°C	-0.29 %/°C	±0.000 %/°C

String Compatibility Calculator

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Panel Matcher

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Find an inverter that fits your panel array with the right MPPT range and DC/AC ratio.

How the Algorithm Works

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Original Panel Specs

Voc

48.4 V

Vmpp

40.8 V

Isc

18.73 A

Impp

17.65 A

TcVoc

-0.25 %/°C

TcPmax

-0.29 %/°C

Pmax

720 W

Cells

132

Bifaciality

80%

Length

2384 mm

Width

1303 mm

Thickness

33 mm

Weight

36.7 kg

The DAH Solar DHN-66Y18/DG-720W is a 720 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
700 W	47.6 V	18.49 A
705 W	47.8 V	18.55 A
710 W	48 V	18.61 A
715 W	48.2 V	18.67 A
725 W	48.6 V	18.79 A
730 W	48.8 V	18.85 A

Frequently Asked Questions

What specs must match when replacing the DAH Solar DHN-66Y18/DG-720W?

The most critical specs to match are: cell count (must be exactly 132), Voc close to 48.4 V (within ±5%), and temperature coefficient TcVoc close to -0.25%/°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 DAH Solar DHN-66Y18/DG-720W?

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 DAH Solar DHN-66Y18/DG-720W.