Phono Solar — China

Pro 420W B All-Black

The Phono Solar Pro 420W B All-Black is a 420W PERC solar panel with 20.2% efficiency. Backed by a 17-year warranty.

Standard Tier FEOC: Restricted Bifacial

420W

Wattage

20.2%

Efficiency

PERC

Cell Type

17 years

Warranty

Full Specifications

Brand
Phono Solar
Model
Pro 420W B All-Black
Series
Pro
Wattage
420W
Module Efficiency
20.2%
Cell Type
PERC
Dimensions
66-80" x 39-41"
Weight
48 lbs
Warranty
17 years
Est. Price Per Watt
$2.31
Est. 7kW System Cost
$16,170
Est. 10kW System Cost
$23,100
Temperature Coefficient
-0.35%/°C
Bifacial
Yes
Origin
China
FEOC Status
fail

Other Phono Solar Panels

Model Wattage Efficiency Cell $/W
TwinPlus 450W D 450W 21.2% PERC $2.61
Plus 450W D 450W 21.2% PERC $2.61
Pro 450W D 450W 21.2% PERC $2.61
TwinPlus 445W C All-Black 445W 21% N-Type TOPCon $2.55
Plus 445W C All-Black 445W 21% N-Type TOPCon $2.55

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 Phono Solar Pro 420W B All-Black cost?
The Phono Solar Pro 420W B All-Black costs approximately $970 per panel ($$2.31/W). A typical 7kW system using this panel would cost around $16,170 before incentives. After the 30% federal tax credit, your net cost drops to $11,319.
Is the Phono Solar Pro 420W B All-Black a good solar panel?
The Phono Solar Pro 420W B All-Black has 20.2% efficiency and a 17 years warranty, placing it in the standard tier. This is a solid mid-range panel suitable for most residential installations.
How many Phono Solar Pro 420W B All-Black 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.