66HT735W vs 66HT750W 16 of 19 identical Swap Change panels

Hanersun HN21N-66HT735W vs Hanersun HN21N-66HT750W

Q: Which panel is better: Hanersun HN21N-66HT735W or Hanersun HN21N-66HT750W?

According to our database: Hanersun HN21N-66HT750W has higher module efficiency (24.10% vs 23.70%). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of Hanersun HN21N-66HT735W and Hanersun HN21N-66HT750W?

Hanersun HN21N-66HT735W has a module efficiency of 23.70%, while Hanersun HN21N-66HT750W is 24.10%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does Hanersun HN21N-66HT735W use vs Hanersun HN21N-66HT750W?

Hanersun HN21N-66HT735W uses TOPCon cells; Hanersun HN21N-66HT750W uses TOPCon. 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 Hanersun HN21N-66HT735W and Hanersun HN21N-66HT750W?

Hanersun HN21N-66HT735W has a 30 years power warranty; Hanersun HN21N-66HT750W 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.

Q: Are Hanersun HN21N-66HT735W and Hanersun HN21N-66HT750W bifacial panels?

Both Hanersun HN21N-66HT735W and Hanersun HN21N-66HT750W 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.

Hanersun

HN21N-66HT735W

735 Wp 23.70 % TOPCon Bifacial

Open panel page Datasheet PDF

Hanersun

HN21N-66HT750W

750 Wp 24.10 % TOPCon Bifacial

Open panel page Datasheet PDF

The verdict

66HT750W leads on the differences that matter

The largest is module efficiency: 0.40 pp more efficient. 16 of 19 comparable parameters are identical.

See all 3 differences

How alike are they

16 of 19 comparable
parameters are identical

identical differs

What actually differs

3 of 19 parameters

Parameter 66HT735W 66HT750W Difference

Module efficiency 23.70 % 24.10 % 0.40 pp more efficient

Power density 236.6 Wp/m² 241.4 Wp/m² 4.8 Wp/m² higher

Rated power 735 Wp 750 Wp 15 W more power

What it means on a roof

Thirty years of production

Each panel's own declared degradation curve, at 1,200 kWh/kWp a year

Cell temperature

Same temp coeff. for both panels (-0.280 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.

66HT735W

24,661 kWh

66HT750W

25,164 kWh

Lifetime gap

503 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario 66HT735W 66HT750W

Standard test conditions 25 °C 100.0% of rated power 735 W 750 W

Cool, bright day 40 °C 95.8% of rated power 704 W 719 W

Typical summer roof 55 °C 91.6% of rated power 673 W 687 W

Hot roof 70 °C 87.4% of rated power 642 W 656 W

Full specification

Parameter 66HT735W 66HT750W Difference

Power and efficiency

Rated power 735 Wp 750 Wp +15 W for 66HT750W

Module efficiency 23.70 % 24.10 % +0.40 pp for 66HT750W

Power density 236.6 Wp/m² 241.4 Wp/m² +4.8 Wp/m² for 66HT750W

Open-circuit voltage 49.60 V 50.20 V Effectively the same

Voltage at max power 41.76 V 42.24 V Effectively the same

Short-circuit current 18.62 A 18.74 A Effectively the same

Current at max power 17.61 A 17.76 A Effectively the same

Temperature

Temperature coefficient -0.280 %/°C -0.280 %/°C Same

Mechanical

Dimensions 2384x1303x33 mm 2384x1303x33 mm Same

Module area 3.106 m² 3.106 m² Same

Weight 37.4 kg 37.4 kg Same

Weight per kWp 50.9 kg/kWp 49.9 kg/kWp Effectively the same

Warranty and degradation

Product warranty 15 yrs 15 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

Against the whole database

14,005 panels

Efficiency

#517 vs #219

66HT750W leads by 298 places

Power density

#582 vs #219

66HT750W leads by 363 places

Heat behaviour

#1,309 vs #1,309

Tied - the same position in the database

Weight

#4,262 vs #3,251

66HT750W leads by 1,011 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#155 vs #73

66HT750W leads by 82 places

More useful comparisons

Open the full database

Same series, other bin

Hanersun

Hanersun HN21N-66HT735W vs Hanersun HN21N-66HT745W

3 differences, the largest is module efficiency

Same series, other bin

Hanersun

Hanersun HN21N-66HT735W vs Hanersun HN21N-66HT740W

The same specification on paper

Same series, other bin

Hanersun

Hanersun HN21N-66HT735W vs Hanersun HN21RN-66QT670W

13 differences, the largest is module efficiency

Same series, other bin

Hanersun

Hanersun HN21N-66HT735W vs Hanersun HN21RN-66QT665W

13 differences, the largest is module efficiency

Same series, other bin

Hanersun

Hanersun HN21N-66HT735W vs Hanersun HN21RN-66QT660W

12 differences, the largest is module efficiency

Same series, other bin

Hanersun

Hanersun HN21N-66HT735W vs Hanersun HN21RN-66QT655W

11 differences, the largest is rated power

Written summary

Checking cache...

Questions about this pairing

Which panel is better: Hanersun HN21N-66HT735W or Hanersun HN21N-66HT750W?

According to our database: Hanersun HN21N-66HT750 W has higher module efficiency (24.10% vs 23.70%). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of Hanersun HN21N-66HT735W and Hanersun HN21N-66HT750W?

Hanersun HN21N-66HT735 W has a module efficiency of 23.70%, while Hanersun HN21N-66HT750 W is 24.10%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does Hanersun HN21N-66HT735W use vs Hanersun HN21N-66HT750W?

Hanersun HN21N-66HT735 W uses TOPCon cells; Hanersun HN21N-66HT750 W 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 Hanersun HN21N-66HT735W and Hanersun HN21N-66HT750W?

Hanersun HN21N-66HT735 W has a 30 years power warranty; Hanersun HN21N-66HT750 W 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 Hanersun HN21N-66HT735W and Hanersun HN21N-66HT750W bifacial panels?

Both Hanersun HN21N-66HT735 W and Hanersun HN21N-66HT750 W 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.

Shop prices: See 19 Hanersun 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.