450W vs 450 18 of 18 identical Swap Change panels

DAH Solar DHM-60X10/FS(BW)-450W vs DAH Solar DHM-60X10/FS(BW)-450

Q: What is the efficiency of DAH Solar DHM-60X10/FS(BW)-450W and DAH Solar DHM-60X10/FS(BW)-450?

DAH Solar DHM-60X10/FS(BW)-450W has a module efficiency of 20.85%, while DAH Solar DHM-60X10/FS(BW)-450 is 20.85%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does DAH Solar DHM-60X10/FS(BW)-450W use vs DAH Solar DHM-60X10/FS(BW)-450?

DAH Solar DHM-60X10/FS(BW)-450W uses PERC cells; DAH Solar DHM-60X10/FS(BW)-450 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 DAH Solar DHM-60X10/FS(BW)-450W and DAH Solar DHM-60X10/FS(BW)-450?

DAH Solar DHM-60X10/FS(BW)-450W has a 25 years power warranty; DAH Solar DHM-60X10/FS(BW)-450 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.

DAH Solar

DHM-60X10/FS(BW)-450W

450 Wp 20.85 % PERC Incomplete

Open panel page Datasheet PDF

DAH Solar

DHM-60X10/FS(BW)-450

450 Wp 20.85 % PERC

Open panel page Datasheet PDF

The verdict

Identical on every published parameter

All 18 comparable parameters agree, with 1 more left out because at least one datasheet does not publish it. 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

18 of 18 comparable
parameters are identical

identical differs not published

What actually differs

0 of 18 parameters

Every comparable parameter agrees. The full specification is below.

What it means on a roof

Thirty years of production

Declared first-year losses, with 0.40% a year afterwards assumed for both panels, at 1,200 kWh/kWp a year

Cell temperature

Same temp coeff. for both panels (-0.350 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.

450W

14,936 kWh

450

14,936 kWh

Lifetime gap

No difference

Output when it is hot

Rated power carried across the range a module actually sees

Scenario 450W 450

Standard test conditions 25 °C 100.0% of rated power 450 W 450 W

Cool, bright day 40 °C 94.8% of rated power 426 W 426 W

Typical summer roof 55 °C 89.5% of rated power 403 W 403 W

Hot roof 70 °C 84.2% of rated power 379 W 379 W

Full specification

Parameter 450W 450 Difference

Power and efficiency

Rated power 450 Wp 450 Wp Same

Module efficiency 20.85 % 20.85 % Same

Power density 208.5 Wp/m² 208.5 Wp/m² Same

Open-circuit voltage 41.60 V 41.60 V Same

Voltage at max power 35.20 V 35.20 V Same

Short-circuit current 13.66 A 13.66 A Same

Current at max power 12.78 A 12.78 A Same

Temperature

Temperature coefficient -0.350 %/°C -0.350 %/°C Same

Mechanical

Dimensions 1903x1134x32 mm 1903x1134x32 mm Same

Module area 2.158 m² 2.158 m² Same

Weight 23.8 kg 23.8 kg Same

Weight per kWp 52.9 kg/kWp 52.9 kg/kWp Same

Warranty and degradation

Product warranty 12 yrs 12 yrs Same

Performance warranty 25 yrs 25 yrs Same

Annual degradation - 0.55 %/yr Not published by DAH Solar

Technology

Cell technology PERC PERC Same

Cell type Monocrystalline Monocrystalline Same

Cell count 120 120 Same

Bifacial No No Same