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F 620W vs F-620 19 of 19 identical Swap Change panels

HT-SAAE HT66-18X(ND)-F 620W vs HT-SAAE HT66-18X(ND)-F-620

HT-SAAE
HT66-18X(ND)-F 620W
620 Wp 23.00 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
HT-SAAE
HT66-18X(ND)-F-620
620 Wp 23.00 % TOPCon Bifacial
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
01

What actually differs

0 of 19 parameters

Every comparable parameter agrees. The full specification is below.

02

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
Same temp coeff. for both panels (-0.310 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
F 620W
20,802 kWh
F-620
20,802 kWh
Lifetime gap
No difference
Output when it is hot
Rated power carried across the range a module actually sees
Scenario F 620W F-620
Standard test conditions 25 °C 100.0% of rated power 620 W 620 W
Cool, bright day 40 °C 95.3% of rated power 591 W 591 W
Typical summer roof 55 °C 90.7% of rated power 562 W 562 W
Hot roof 70 °C 86.0% of rated power 534 W 534 W
03

Full specification

Parameter F 620W F-620 Difference
Power and efficiency
Rated power 620 Wp 620 Wp Same
Module efficiency 23.00 % 23.00 % Same
Power density 229.5 Wp/m² 229.5 Wp/m² Same
Open-circuit voltage 48.30 V 48.30 V Same
Voltage at max power 40.20 V 40.20 V Same
Short-circuit current 16.15 A 16.15 A Same
Current at max power 15.43 A 15.43 A Same
Temperature
Temperature coefficient -0.310 %/°C -0.310 %/°C Same
Mechanical
Dimensions 2382x1134x35 mm 2382x1134x35 mm Same
Module area 2.701 m² 2.701 m² Same
Weight 33.5 kg 33.5 kg Same
Weight per kWp 54.0 kg/kWp 54.0 kg/kWp Same
Warranty and degradation
Product warranty 30 yrs 30 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.40 %/yr Same
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 132 132 Same
Bifacial Yes Yes Same
04

Against the whole database

14,129 panels
Efficiency
#1,970 vs #1,970
Tied - the same position in the database
Power density
#2,243 vs #2,243
Tied - the same position in the database
Heat behaviour
#8,069 vs #8,069
Tied - the same position in the database
Weight
#8,326 vs #8,326
Tied - the same position in the database
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#538 vs #538
Tied - the same position in the database
05

More useful comparisons

Open the full database
Same series, other bin
HT-SAAE
HT-SAAE HT66-18X(ND)-F 620W vs HT-SAAE HT66-18X(ND)-F 615W
One difference: module efficiency
Same series, other bin
HT-SAAE
HT-SAAE HT66-18X(ND)-F 620W vs HT-SAAE HT66-18X(ND)-F-615
One difference: module efficiency
Same series, other bin
HT-SAAE
HT-SAAE HT66-18X(ND)-F 620W vs HT-SAAE HT66-18X(ND)-F 610W
3 differences, the largest is module efficiency
Same series, other bin
HT-SAAE
HT-SAAE HT66-18X(ND)-F 620W vs HT-SAAE HT66-18X(ND)-F-610
3 differences, the largest is module efficiency
Same series, other bin
HT-SAAE
HT-SAAE HT66-18X(ND)-F 620W vs HT-SAAE HT66-18X(ND)-F 605W
3 differences, the largest is module efficiency
Same series, other bin
HT-SAAE
HT-SAAE HT66-18X(ND)-F 620W vs HT-SAAE HT66-18X(ND)-F-605
3 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: HT-SAAE HT66-18X(ND)-F 620W or HT-SAAE HT66-18X(ND)-F-620?
According to our database: both panels are closely matched on key specs - the decision often comes down to price and local availability. See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of HT-SAAE HT66-18X(ND)-F 620W and HT-SAAE HT66-18X(ND)-F-620?
HT-SAAE HT66-18X(ND)-F 620 W has a module efficiency of 23.00%, while HT-SAAE HT66-18X(ND)-F-620 is 23.00%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does HT-SAAE HT66-18X(ND)-F 620W use vs HT-SAAE HT66-18X(ND)-F-620?
HT-SAAE HT66-18X(ND)-F 620 W uses TOPCon cells; HT-SAAE HT66-18X(ND)-F-620 uses TOPCon. 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 HT-SAAE HT66-18X(ND)-F 620W and HT-SAAE HT66-18X(ND)-F-620?
HT-SAAE HT66-18X(ND)-F 620 W has a 30 years power warranty; HT-SAAE HT66-18X(ND)-F-620 has a 30 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.
Are HT-SAAE HT66-18X(ND)-F 620W and HT-SAAE HT66-18X(ND)-F-620 bifacial panels?
Both HT-SAAE HT66-18X(ND)-F 620 W and HT-SAAE HT66-18X(ND)-F-620 are bifacial - they capture reflected light from the ground, which can add 5-15% more annual energy on ground-mount or elevated rooftop installations with a light surface beneath.

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.