REC REC460AA PURE-RX vs JA Solar JAM54D40-455/LB
VS
The verdict
14 differences, and they point both ways
The largest is temperature coefficient: 0.050 %/°C better in heat. 5 of 19 comparable parameters are identical.
See all 14 differencesHow alike are they
5
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
14 of 19 parameters
What actually differs
Parameter
REC460AA PURE-RX
JAM54D40-455/LB
Difference
Temperature coefficient
-0.240 %/°C
-0.290 %/°C
0.050 %/°C better in heat
Module efficiency
22.10 %
22.80 %
0.70 pp more efficient
Performance warranty
25 yrs
30 yrs
5 yrs longer
Annual degradation
0.25 %/yr
0.40 %/yr
0.15 %/yr slower
Product warranty
25 yrs
12 yrs
13 yrs longer
Power density
220.9 Wp/m²
227.7 Wp/m²
6.8 Wp/m² higher
Open-circuit voltage
65.70 V
39.50 V
26.20 V apart
Short-circuit current
8.88 A
14.56 A
5.68 A apart
Module area
2.082 m²
1.998 m²
0.084 m² apart
Cell technology
HJT
TOPCon
HJT vs TOPCon
Voltage at max power
54.90 V
33.00 V
21.90 V apart
Current at max power
8.38 A
13.79 A
5.41 A apart
Cell count
88
108
20 cells apart
Dimensions
1728x1205x30 mm
1762x1134x30 mm
1728x1205x30 mm vs 1762x1134x30 mm
02
What it means on a roof
Thirty years of production
Each panel's own declared degradation curve, at 1,200 kWh/kWp a year
REC460AA PURE-RX
15,628 kWh
JAM54D40-455/LB
15,266 kWh
Lifetime gap
362 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
REC460AA PURE-RX
JAM54D40-455/LB
Standard test conditions
25 °C
100.0% of rated power
460 W
455 W
Cool, bright day
40 °C
95.7% of rated power
443 W
435 W
Typical summer roof
55 °C
91.3% of rated power
427 W
415 W
Hot roof
70 °C
87.0% of rated power
410 W
396 W
03
Full specification
Parameter
REC460AA PURE-RX
JAM54D40-455/LB
Difference
Power and efficiency
Rated power
460 Wp
455 Wp
Effectively the same
Module efficiency
22.10 %
22.80 %
+0.70 pp for JAM54D40-455/LB
Power density
220.9 Wp/m²
227.7 Wp/m²
+6.8 Wp/m² for JAM54D40-455/LB
Open-circuit voltage
65.70 V
39.50 V
26.20 V apart
Voltage at max power
54.90 V
33.00 V
21.90 V apart
Short-circuit current
8.88 A
14.56 A
5.68 A apart
Current at max power
8.38 A
13.79 A
5.41 A apart
Temperature
Temperature coefficient
-0.240 %/°C
-0.290 %/°C
+0.050 %/°C for REC460AA PURE-RX
Mechanical
Dimensions
1728x1205x30 mm
1762x1134x30 mm
1728x1205x30 mm vs 1762x1134x30 mm
Module area
2.082 m²
1.998 m²
0.084 m² apart
Weight
22.7 kg
22.0 kg
Effectively the same
Weight per kWp
49.3 kg/kWp
48.4 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
25 yrs
12 yrs
+13 yrs for REC460AA PURE-RX
Performance warranty
25 yrs
30 yrs
+5 yrs for JAM54D40-455/LB
Annual degradation
0.25 %/yr
0.40 %/yr
-0.15 %/yr for REC460AA PURE-RX
Technology
Cell technology
HJT
TOPCon
HJT vs TOPCon
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
88
108
20 cells apart
Bifacial
Yes
Yes
Same
04
14,129 panels
Against the whole database
Efficiency
#6,076
vs
#2,769
JAM54D40-455/LB leads by 3,307 places
Power density
#6,070
vs
#2,943
JAM54D40-455/LB leads by 3,127 places
Heat behaviour
#13
vs
#2,220
REC460AA PURE-RX leads by 2,207 places
Weight
#2,878
vs
#2,224
JAM54D40-455/LB leads by 654 places
Warranty
#9,912
vs
#21
JAM54D40-455/LB leads by 9,891 places
Overall
#7,445
vs
#8,580
REC460AA PURE-RX leads by 1,135 places
05
Open the full database
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06
Written summary
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07
Questions about this pairing
Which panel is better: REC REC460AA PURE-RX or JA Solar JAM54D40-455/LB?
According to our database: JA Solar JAM54D40-455/LB has higher module efficiency (22.80% vs 22.10%); REC REC460AA PURE-RX tolerates heat better (temp coeff -0.240%/°C vs -0.290%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of REC REC460AA PURE-RX and JA Solar JAM54D40-455/LB?
REC REC460AA PURE-RX has a module efficiency of 22.10%, while JA Solar JAM54D40-455/LB is 22.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does REC REC460AA PURE-RX use vs JA Solar JAM54D40-455/LB?
REC REC460AA PURE-RX uses HJT cells; JA Solar JAM54D40-455/LB 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 REC REC460AA PURE-RX and JA Solar JAM54D40-455/LB?
REC REC460AA PURE-RX has a 25 years power warranty; JA Solar JAM54D40-455/LB 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 REC REC460AA PURE-RX and JA Solar JAM54D40-455/LB bifacial panels?
Both REC REC460AA PURE-RX and JA Solar JAM54D40-455/LB 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 5 REC offers · See 314 JA Solar 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.