JA Solar DeepBlue 4.0 440W Bifacial
#2 in 150 W and upFull review
A well-priced all-black bifacial rooftop panel from a top-tier maker for a home grid-tie system bought as a full set.
US Solar Supplier $189$189
1 JA Solar rigid solar panel ranked. Each one is scored and ranked against every brand in its size, so "#3 mid-size" means third of all mid-size rigid panels here, not third among JA Solar's own.
The JA Solar DeepBlue 4.0 440W Bifacial is JA Solar's only current rigid solar panel here, ranked #2 of 61 150 W and up and rated 4.7. It is bifacial. The warranty is 25 years. It has no independent output test yet.
Prices were last checked October 26, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
JA Solar rigid panels 1
- JA Solar DeepBlue 4.0 440W Bifacial#2 150 W and upFull review
A well-priced all-black bifacial rooftop panel from a top-tier maker for a home grid-tie system bought as a full set.
US Solar Supplier $189$189440 W22.5%47.4 lb$0.43