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All replacements

Find replacement for Q-SUN Solar QN-450HT-05

450 W TOPCon solar panel with 108 cells. Voc 39.98 V · Isc 14.25 A · TcVoc -0.24%/°C.

Select the panel you want to replace

Show only panels with matching cell technology

Compatible Replacements

188 panels found · 3522 panels excluded

Q-SUN Solar QN-455HT-05

455 W

TOPCon
93Good match
ParameterOriginalReplacementDeviation
Voc39.98 V40.08 V0.3%
Vmpp33.23 V33.48 V0.8%
Isc14.25 A14.3 A0.4%
Impp13.54 A13.59 A0.4%
TcVoc-0.24 %/°C-0.24 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Ulica Solar UL-455M-108BDGN

455 W

TOPCon
90Good match
ParameterOriginalReplacementDeviation
Voc39.98 V39.98 V0.0%
Vmpp33.23 V33.42 V0.6%
Isc14.25 A14.45 A1.4%
Impp13.54 A13.61 A0.5%
TcVoc-0.24 %/°C-0.25 %/°C±0.010 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Phono Solar PS445M8GF-18/VNH

445 W

TOPCon
88Good match
ParameterOriginalReplacementDeviation
Voc39.98 V39.9 V0.2%
Vmpp33.23 V33.02 V0.6%
Isc14.25 A14.18 A0.5%
Impp13.54 A13.48 A0.4%
TcVoc-0.24 %/°C-0.25 %/°C±0.010 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Q-SUN Solar QN-445HT-05

445 W

TOPCon
87Good match
ParameterOriginalReplacementDeviation
Voc39.98 V39.7 V0.7%
Vmpp33.23 V32.99 V0.7%
Isc14.25 A14.19 A0.4%
Impp13.54 A13.49 A0.4%
TcVoc-0.24 %/°C-0.24 %/°C±0.000 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Ulica Solar UL-450M-108BDGN

450 W

TOPCon
87Good match
ParameterOriginalReplacementDeviation
Voc39.98 V39.78 V0.5%
Vmpp33.23 V33.22 V0.0%
Isc14.25 A14.38 A0.9%
Impp13.54 A13.55 A0.1%
TcVoc-0.24 %/°C-0.25 %/°C±0.010 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
GCL-NT10R/54BGDF 450

450 W

TOPCon
87Good match
ParameterOriginalReplacementDeviation
Voc39.98 V40 V0.1%
Vmpp33.23 V33.46 V0.7%
Isc14.25 A13.95 A2.1%
Impp13.54 A13.45 A0.7%
TcVoc-0.24 %/°C-0.25 %/°C±0.010 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Ulica Solar UL-455M-108BHVN

455 W

TOPCon
86Good match
ParameterOriginalReplacementDeviation
Voc39.98 V39.94 V0.1%
Vmpp33.23 V33.64 V1.2%
Isc14.25 A14.43 A1.3%
Impp13.54 A13.53 A0.1%
TcVoc-0.24 %/°C-0.25 %/°C±0.010 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Horay Solar HS450TC-MHA-D

450 W

TOPCon
86Good match
ParameterOriginalReplacementDeviation
Voc39.98 V39.97 V0.0%
Vmpp33.23 V33.39 V0.5%
Isc14.25 A13.94 A2.2%
Impp13.54 A13.48 A0.4%
TcVoc-0.24 %/°C-0.23 %/°C±0.010 %/°C
TcPmax-0.29 %/°C-0.28 %/°C±0.010 %/°C
AXITEC AC-450TGBL/108WB

450 W

TOPCon
85Good match
ParameterOriginalReplacementDeviation
Voc39.98 V39.98 V0.0%
Vmpp33.23 V33.24 V0.0%
Isc14.25 A14.25 A0.0%
Impp13.54 A13.54 A0.0%
TcVoc-0.24 %/°C-0.26 %/°C±0.020 %/°C
TcPmax-0.29 %/°C-0.31 %/°C±0.020 %/°C
AXITEC AC-450TGBL/108BB

450 W

TOPCon
85Good match
ParameterOriginalReplacementDeviation
Voc39.98 V39.98 V0.0%
Vmpp33.23 V33.24 V0.0%
Isc14.25 A14.25 A0.0%
Impp13.54 A13.54 A0.0%
TcVoc-0.24 %/°C-0.26 %/°C±0.020 %/°C
TcPmax-0.29 %/°C-0.31 %/°C±0.020 %/°C
Luxor Solar LX-460M/182-108+ GG

460 W

TOPCon
84Good match
ParameterOriginalReplacementDeviation
Voc39.98 V40.01 V0.1%
Vmpp33.23 V33.05 V0.5%
Isc14.25 A14.69 A3.1%
Impp13.54 A13.93 A2.9%
TcVoc-0.24 %/°C-0.25 %/°C±0.010 %/°C
TcPmax-0.29 %/°C-0.29 %/°C±0.000 %/°C
Horay Solar HS445TC-MHO-D

445 W

TOPCon
84Good match
ParameterOriginalReplacementDeviation
Voc39.98 V39.9 V0.2%
Vmpp33.23 V33.44 V0.6%
Isc14.25 A14.37 A0.8%
Impp13.54 A13.31 A1.7%
TcVoc-0.24 %/°C-0.23 %/°C±0.010 %/°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

39.98 V

Vmpp

33.23 V

Isc

14.25 A

Impp

13.54 A

TcVoc

-0.24 %/°C

TcPmax

-0.29 %/°C

Pmax

450 W

Cells

108

Bifaciality

80%

Length

1762 mm

Width

1134 mm

Thickness

30 mm

Weight

25 kg

The Q-SUN Solar QN-450HT-05 is a 450 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
QN-440HT-05440 W39.42 V14.13 A
QN-445HT-05445 W39.7 V14.19 A
QN-455HT-05455 W40.08 V14.3 A
QN-460HT-05460 W40.37 V14.36 A

Frequently Asked Questions

What specs must match when replacing the Q-SUN Solar QN-450HT-05?

The most critical specs to match are: cell count (must be exactly 108), Voc close to 39.98 V (within ±5%), and temperature coefficient TcVoc close to -0.24%/°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 Q-SUN Solar QN-450HT-05?

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 Q-SUN Solar QN-450HT-05.