665 vs 660W 19 of 19 identical Swap Change panels

ZNShine ZXM8-TP132-665 vs ZNShine ZXM8-TP132-660W

Q: Which panel is better: ZNShine ZXM8-TP132-665 or ZNShine ZXM8-TP132-660W?

According to our database: ZNShine ZXM8-TP132-665 has higher module efficiency (21.41% vs 21.25%). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of ZNShine ZXM8-TP132-665 and ZNShine ZXM8-TP132-660W?

ZNShine ZXM8-TP132-665 has a module efficiency of 21.41%, while ZNShine ZXM8-TP132-660W is 21.25%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does ZNShine ZXM8-TP132-665 use vs ZNShine ZXM8-TP132-660W?

ZNShine ZXM8-TP132-665 uses PERC cells; ZNShine ZXM8-TP132-660W uses PERC. Modern n-type technologies (TOPCon, HJT, BC) typically deliver higher efficiency and lower degradation compared to older PERC (p-type) cells.

Q: What is the warranty on ZNShine ZXM8-TP132-665 and ZNShine ZXM8-TP132-660W?

ZNShine ZXM8-TP132-665 has a 25 years power warranty; ZNShine ZXM8-TP132-660W has a 25 years power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80-87%). Product (materials) warranties are usually shorter.

ZXM8-TP132-665

665 Wp 21.41 % PERC

Open panel page Datasheet PDF

ZXM8-TP132-660W

660 Wp 21.25 % PERC

Open panel page Datasheet PDF

The verdict

Identical on every published parameter

All 19 comparable parameters agree. Two records this alike are usually one panel sold under two names, or two bins of the same production line - decide on price and on who you would rather buy from.

How alike are they

19 of 19 comparable
parameters are identical

identical differs

What actually differs

0 of 19 parameters

Every comparable parameter agrees. The full specification is below.

What it means on a roof

Thirty years of production

Declared annual degradation, with a 1.0% first-year loss assumed for both panels because at least one datasheet omits it, at 1,200 kWh/kWp a year

Cell temperature

Same temp coeff. for both panels (-0.340 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.

665

21,791 kWh

660W

21,628 kWh

Lifetime gap

163 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario 665 660W

Standard test conditions 25 °C 100.0% of rated power 665 W 660 W

Cool, bright day 40 °C 94.9% of rated power 631 W 626 W

Typical summer roof 55 °C 89.8% of rated power 597 W 593 W

Hot roof 70 °C 84.7% of rated power 563 W 559 W

Full specification

Parameter 665 660W Difference

Power and efficiency

Rated power 665 Wp 660 Wp Effectively the same

Module efficiency 21.41 % 21.25 % Effectively the same

Power density 214.1 Wp/m² 212.5 Wp/m² Effectively the same

Open-circuit voltage 45.80 V 45.60 V Effectively the same

Voltage at max power 38.00 V 37.80 V Effectively the same

Short-circuit current 18.57 A 18.52 A Effectively the same

Current at max power 17.50 A 17.47 A Effectively the same

Temperature

Temperature coefficient -0.340 %/°C -0.340 %/°C Same

Mechanical

Dimensions 2384x1303x35 mm 2384x1303x35 mm Same

Module area 3.106 m² 3.106 m² Same

Weight 33.5 kg 33.5 kg Same

Weight per kWp 50.4 kg/kWp 50.8 kg/kWp Effectively the same

Warranty and degradation

Product warranty 12 yrs 12 yrs Same

Performance warranty 25 yrs 25 yrs Same

Annual degradation 0.55 %/yr 0.55 %/yr Same

Technology

Cell technology PERC PERC Same

Cell type Monocrystalline Monocrystalline Same

Cell count 132 132 Same

Bifacial No No Same

Against the whole database

14,005 panels

Efficiency

#8,280 vs #8,904

665 leads by 624 places

Power density

#8,250 vs #8,959

665 leads by 709 places

Heat behaviour

#8,778 vs #8,778

Tied - the same position in the database

Weight

#3,742 vs #4,172

665 leads by 430 places

Warranty

#9,798 vs #9,798

Tied - the same position in the database

Overall

#3,744 vs #4,111

665 leads by 367 places

More useful comparisons

Open the full database

Same series, other bin

ZNShine ZXM8-TP132-665 vs ZNShine ZXM8-TP132-670W

The same specification on paper

Same series, other bin

ZNShine ZXM8-TP132-665 vs ZNShine ZXM8-TP132-670

The same specification on paper

Same series, other bin

ZNShine ZXM8-TP132-665 vs ZNShine ZXM8-TP132-665W

The same specification on paper

Same series, other bin

ZNShine ZXM8-TP132-665 vs ZNShine ZXM8-TP132-660

The same specification on paper

Same series, other bin

ZNShine ZXM8-TP132-665 vs ZNShine ZXM8-TP132-655W

3 differences, the largest is module efficiency

Same series, other bin

ZNShine ZXM8-TP132-665 vs ZNShine ZXM8-TP132-655

3 differences, the largest is module efficiency

Written summary

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Questions about this pairing

Which panel is better: ZNShine ZXM8-TP132-665 or ZNShine ZXM8-TP132-660W?

According to our database: ZNShine ZXM8-TP132-665 has higher module efficiency (21.41% vs 21.25%). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of ZNShine ZXM8-TP132-665 and ZNShine ZXM8-TP132-660W?

ZNShine ZXM8-TP132-665 has a module efficiency of 21.41%, while ZNShine ZXM8-TP132-660 W is 21.25%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does ZNShine ZXM8-TP132-665 use vs ZNShine ZXM8-TP132-660W?

ZNShine ZXM8-TP132-665 uses PERC cells; ZNShine ZXM8-TP132-660 W uses PERC. Modern n-type technologies (TOPCon, HJT, BC) typically deliver higher efficiency and lower degradation compared to older PERC (p-type) cells.

What is the warranty on ZNShine ZXM8-TP132-665 and ZNShine ZXM8-TP132-660W?

ZNShine ZXM8-TP132-665 has a 25 years power warranty; ZNShine ZXM8-TP132-660 W has a 25 years power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80-87%). Product (materials) warranties are usually shorter.

Shop prices: See 12 ZNShine offers

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate. The thirty-year projection and the temperature scenarios are calculations from those figures, and each states its assumption above.