JA Solar JAM54D40-455/LB vs REC REC460AA PURE-RX
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
JAM54D40-455/LB
REC460AA PURE-RX
Difference
Temperature coefficient
-0.290 %/°C
-0.240 %/°C
0.050 %/°C better in heat
Module efficiency
22.80 %
22.10 %
0.70 pp more efficient
Performance warranty
30 yrs
25 yrs
5 yrs longer
Annual degradation
0.40 %/yr
0.25 %/yr
0.15 %/yr slower
Product warranty
12 yrs
25 yrs
13 yrs longer
Power density
227.7 Wp/m²
220.9 Wp/m²
6.8 Wp/m² higher
Open-circuit voltage
39.50 V
65.70 V
26.20 V apart
Short-circuit current
14.56 A
8.88 A
5.68 A apart
Module area
1.998 m²
2.082 m²
0.084 m² apart
Cell technology
TOPCon
HJT
TOPCon vs HJT
Voltage at max power
33.00 V
54.90 V
21.90 V apart
Current at max power
13.79 A
8.38 A
5.41 A apart
Cell count
108
88
20 cells apart
Dimensions
1762x1134x30 mm
1728x1205x30 mm
1762x1134x30 mm vs 1728x1205x30 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
JAM54D40-455/LB
15,266 kWh
REC460AA PURE-RX
15,628 kWh
Lifetime gap
362 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
JAM54D40-455/LB
REC460AA PURE-RX
Standard test conditions
25 °C
100.0% of rated power
455 W
460 W
Cool, bright day
40 °C
95.7% of rated power
435 W
443 W
Typical summer roof
55 °C
91.3% of rated power
415 W
427 W
Hot roof
70 °C
87.0% of rated power
396 W
410 W
03
Full specification
Parameter
JAM54D40-455/LB
REC460AA PURE-RX
Difference
Power and efficiency
Rated power
455 Wp
460 Wp
Effectively the same
Module efficiency
22.80 %
22.10 %
+0.70 pp for JAM54D40-455/LB
Power density
227.7 Wp/m²
220.9 Wp/m²
+6.8 Wp/m² for JAM54D40-455/LB
Open-circuit voltage
39.50 V
65.70 V
26.20 V apart
Voltage at max power
33.00 V
54.90 V
21.90 V apart
Short-circuit current
14.56 A
8.88 A
5.68 A apart
Current at max power
13.79 A
8.38 A
5.41 A apart
Temperature
Temperature coefficient
-0.290 %/°C
-0.240 %/°C
+0.050 %/°C for REC460AA PURE-RX
Mechanical
Dimensions
1762x1134x30 mm
1728x1205x30 mm
1762x1134x30 mm vs 1728x1205x30 mm
Module area
1.998 m²
2.082 m²
0.084 m² apart
Weight
22.0 kg
22.7 kg
Effectively the same
Weight per kWp
48.4 kg/kWp
49.3 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
12 yrs
25 yrs
+13 yrs for REC460AA PURE-RX
Performance warranty
30 yrs
25 yrs
+5 yrs for JAM54D40-455/LB
Annual degradation
0.40 %/yr
0.25 %/yr
-0.15 %/yr for REC460AA PURE-RX
Technology
Cell technology
TOPCon
HJT
TOPCon vs HJT
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
108
88
20 cells apart
Bifacial
Yes
Yes
Same
04
14,129 panels
Against the whole database
Efficiency
#2,769
vs
#6,076
JAM54D40-455/LB leads by 3,307 places
Power density
#2,943
vs
#6,070
JAM54D40-455/LB leads by 3,127 places
Heat behaviour
#2,220
vs
#13
REC460AA PURE-RX leads by 2,207 places
Weight
#2,224
vs
#2,878
JAM54D40-455/LB leads by 654 places
Warranty
#21
vs
#9,912
JAM54D40-455/LB leads by 9,891 places
Overall
#8,580
vs
#7,445
REC460AA PURE-RX leads by 1,135 places
05
Open the full database
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06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: JA Solar JAM54D40-455/LB or REC REC460AA PURE-RX?
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 JA Solar JAM54D40-455/LB and REC REC460AA PURE-RX?
JA Solar JAM54D40-455/LB has a module efficiency of 22.80%, while REC REC460AA PURE-RX is 22.10%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does JA Solar JAM54D40-455/LB use vs REC REC460AA PURE-RX?
JA Solar JAM54D40-455/LB uses TOPCon cells; REC REC460AA PURE-RX uses HJT. 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 JA Solar JAM54D40-455/LB and REC REC460AA PURE-RX?
JA Solar JAM54D40-455/LB has a 30 years power warranty; REC REC460AA PURE-RX 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.
Are JA Solar JAM54D40-455/LB and REC REC460AA PURE-RX bifacial panels?
Both JA Solar JAM54D40-455/LB and REC REC460AA PURE-RX 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 328 JA Solar offers · See 5 REC 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.