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JA Solar

JA Solar M78S10-440MR (440W)

Residential · 440W
66
SCORE /100
30 specs
Score this as…
⭐ General / Balanced📐 Max Efficiency (Tight Roof)🛡️ Durability & Warranty🌡️ Hot-Climate Buyer⚡ High-Output / Commercial-Scale🪶 Easy-Install / Older Roof

Score Breakdown

Power Output 97
Efficiency & Real-World Performance 87
Temperature & Climate Resilience 70
Certifications 51
Warranty & Durability 45
Build & Install 41

DC Electrical Characteristics

STC Power Rating
440W
PTC Power Rating
410.41W
STC Power per unit of area
18.8W/ft (202.6W/m)
Peak Efficiency
0.2026
Power Tolerances
0%/+5%
Number of Cells
156
Imp
9.81A
Vmp
44.87V
Isc
10.44A
Voc
53V
NOCT
45°C
Temp. Coefficient of Power
-0.35%/K
Temp. Coefficient of Voltage
-0.144V/K
Series Fuse Rating
20A
Maximum System Voltage
1000V

Mechanical Characteristics

Type
Monocrystalline Silicon
Output Terminal Type
Multicontact Connector Type 4
Frame Color
Clear
Backsheet Color
White
Length
85.8in (2,180mm)
Width
39.2in (996mm)
Depth
1.6in (40mm)
Weight
54.2lb (24.6kg)
Installation Method
Rack-Mounted

Warranty and Certifications

80% Power Output Warranty Period
25yrs
90% Power Output Warranty Period
10yrs
Workmanship Warranty Period
12yrs
UL Fire Classification
data not available
Compliances
IEC 61215, IEC 61730
CSI Listed
No