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JA Solar DeepBlue 4.0 Pro JAM54D40-440/LB/1500V (n-type Bifacial Double Glass, 108 half-cell / 54-cell, 440W)
JA Solar
JA Solar DeepBlue 4.0 Pro JAM54D40-440/LB/1500V (n-type Bifacial Double Glass, 108 half-cell / 54-cell, 440W)
Residential · 440W · Monocrystalline (n-type, bifacial, half-cell, 16BB)
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94
SCORE /100
23 specs · ✓ 23 verified
Score this as…
⭐ General / Balanced
📐 Max Efficiency (Tight Roof)
🛡️ Durability & Warranty
🌡️ Hot-Climate Buyer
⚡ High-Output / Commercial-Scale
🪶 Easy-Install / Older Roof
Score Breakdown
Efficiency & Real-World Performance
97
Power Output
97
Warranty & Durability
97
Temperature & Climate Resilience
81
Build & Install
75
Certifications
72
DC Electrical Characteristics
STC Power Rating
440W
✓
source
STC Power per unit of area
220.2 W/m²
✓
source
Peak Efficiency
0.220
✓
source
Power Tolerances
0/+5W
✓
source
Number of Cells
108 (6x18 half-cut, i.e. 54 full mono cells cut in half)
✓
source
Imp
13.55A
✓
source
Vmp
32.47V
✓
source
Isc
14.31A
✓
source
Voc
38.90V
✓
source
NOCT
45°C ±2°C
✓
source
Temp. Coefficient of Power
-0.300%/°C
✓
source
Temp. Coefficient of Voltage
-0.260%/°C
✓
source
Series Fuse Rating
30A
✓
source
Maximum System Voltage
1500V DC
✓
source
Mechanical Characteristics
Type
Monocrystalline (n-type, bifacial, half-cell, 16BB)
✓
source
Output Terminal Type
MC4-EVO2A / QC4.10-351 (MC4-compatible)
✓
source
Length
1762mm ±2mm
✓
source
Width
1134mm ±2mm
✓
source
Depth
30mm ±1mm
✓
source
Weight
22kg
✓
source
Warranty and Certifications
Workmanship Warranty Period
25 years
✓
source
UL Fire Classification
UL Type 38
✓
source
Compliances
IEC 61215, IEC 61730, ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, CE
✓
source
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