JA Solar — China

DeepBlue 3.0 420W A Max

The JA Solar DeepBlue 3.0 420W A Max is a 420W N-Type TOPCon solar panel with 20.2% efficiency. Backed by a 30-year warranty.

Standard Tier FEOC: Restricted Bifacial

420W

Wattage

20.2%

Efficiency

N-Type TOPCon

Cell Type

30 years

Warranty

Full Specifications

Brand
JA Solar
Model
DeepBlue 3.0 420W A Max
Series
DeepBlue 3.0
Wattage
420W
Module Efficiency
20.2%
Cell Type
N-Type TOPCon
Dimensions
66-80" x 39-41"
Weight
48 lbs
Warranty
30 years
Est. Price Per Watt
$2.08
Est. 7kW System Cost
$14,560
Est. 10kW System Cost
$20,800
Temperature Coefficient
-0.25%/°C
Bifacial
Yes
Origin
China
FEOC Status
fail

Other JA Solar Panels

Model Wattage Efficiency Cell $/W
JAM 485W D 485W 22.8% N-Type TOPCon $2.69
DeepBlue 485W D 485W 22.8% N-Type TOPCon $2.69
JAM72 485W D 485W 22.8% N-Type TOPCon $2.69
JAM54 485W D 485W 22.8% N-Type TOPCon $2.69
DeepBlue 3.0 485W D 485W 22.8% N-Type TOPCon $2.69

Similar Wattage Panels (Competitors)

Panel Wattage Efficiency $/W
Maxeon Maxeon 3 450W D Plus 450W 23.3% $4.61
Maxeon Maxeon 6 450W D Plus 450W 23.3% $4.61
Maxeon Maxeon 7 450W D Plus 450W 23.3% $4.61
Maxeon Maxeon Air 450W D Plus 450W 23.3% $4.61

Frequently Asked Questions

How much does a 420W JA Solar DeepBlue 3.0 420W A Max cost?
The JA Solar DeepBlue 3.0 420W A Max costs approximately $874 per panel ($$2.08/W). A typical 7kW system using this panel would cost around $14,560 before incentives. After the 30% federal tax credit, your net cost drops to $10,192.
Is the JA Solar DeepBlue 3.0 420W A Max a good solar panel?
The JA Solar DeepBlue 3.0 420W A Max has 20.2% efficiency and a 30 years warranty, placing it in the standard tier. This is a solid mid-range panel suitable for most residential installations.
How many JA Solar DeepBlue 3.0 420W A Max panels do I need?
For a typical 7kW residential system, you'd need approximately 17 panels. For a 10kW system, plan for about 24 panels. The exact number depends on your roof space, energy usage, and local sun hours.