JA Solar Brand Guide: DeepBlue Series, TOPCon Technology & Dealer Specs
By the PES Supply Editorial Team
JA Solar is one of the world's largest photovoltaic module manufacturers, consistently ranking at or near the top of global shipment volumes year after year. As an authorized PES Supply dealer partner, we stock a deep selection of JA Solar panels alongside our broader catalog of 50,000+ SKUs from 169 authorized brands. This guide walks contractors and installers through JA Solar's company background, current product lines, warranty terms, certifications, and the most popular modules available through PES Supply.
Whether you are sourcing panels for a residential rooftop, a commercial flat-roof array, or a utility-scale ground-mount, JA Solar's DeepBlue platform offers versatile N-type TOPCon options engineered for high yield and long-term reliability. Browse our full inventory of solar panels or jump to the Shop JA Solar Products section below.
1. Company Overview
JA Solar was founded in 2005 and is headquartered in Beijing, China, with additional corporate offices in Shanghai and San Jose, California. The company designs, manufactures, and sells high-performance photovoltaic modules and cells, and operates more than a dozen production facilities across China and Southeast Asia. According to the company, its products are distributed in over 100 countries ([JA Solar product overview](https://www.jasolar.eu/en/products/deep-blue-40)).
JA Solar has ranked among the top three global module shippers every year since 2018 and is widely cited as the #1 module manufacturer by shipment volume for 2023–2025. The company is a Bloomberg New Energy Finance (BNEF) Tier 1 manufacturer and is publicly traded. Its vertically integrated manufacturing spans ingots, wafers, cells, and modules, giving JA Solar strong cost control and quality oversight across the entire value chain.
2. Current Product Lines
JA Solar's current portfolio is built on the DeepBlue platform, which has evolved through several generations of cell technology. The active lines include:
- DeepBlue 4.0 Pro — The workhorse N-type TOPCon series using JA Solar's proprietary Bycium+ cell technology. Mass production began in Q3 2023. The series spans multiple form factors (54-cell, 60-cell, 66-cell, 72-cell, and 78-cell equivalents) with power outputs from roughly 410 W up to 650 W and module efficiencies reaching 22–23.4% ([JA Solar DeepBlue 4.0 Pro](https://www.jasolar.eu/en/products/deep-blue-40)).
- DeepBlue 4.0 Pro Bifacial — Dual-glass bifacial variants of the 4.0 Pro line, delivering additional rear-side energy yield (bifaciality up to 85%) for ground-mount and tracker applications.
- DeepBlue 5.0 — The newest generation (see Recent Releases below), built on Bycium+ 5.0 cells.
- Legacy PERC lines — Older P-type PERC modules (DeepBlue 3.0 family) remain in the field but are being phased out in favor of N-type TOPCon across all segments.
JA Solar manufactures modules in three core formats — 54/108 half-cell (residential), 66/132 half-cell (residential/C&I), and 72/144 and 78/156 half-cell (commercial/utility) — allowing it to cover virtually every project size from a single cell platform ([JA Solar product overview PDF](https://images.assettype.com/taiyangnews/2024-08-06/9yba3gtq/JA_Solar_Products_Overview_V12.pdf)).
3. Recent Releases (2025–2026)
JA Solar's headline launch of 2025 is the DeepBlue 5.0, introduced in January 2025. Built on the proprietary Bycium+ 5.0 N-type cell, the DeepBlue 5.0 integrates upgraded electrical architecture, optimized material enhancements, and structural refinements. Early production modules reach up to 650 W of power output with a cell-to-module conversion efficiency of 24.07%, and the platform is designed to scale to 670 W at up to 24.8% module efficiency with an 85% bifaciality factor ([JA Solar press release](https://www.jasolar.com/index.php?m=content&c=index&a=show&catid=399&id=176); [Newswire](https://www.newswire.ca/news-releases/ja-solar-delivers-first-batch-of-650w-deepblue-5-0-high-efficiency-n-type-modules-877383656.html)).
The DeepBlue 5.0's seamless full-screen design increases the active cell area by up to 1.82%, supporting an additional +20 W of power compared with conventional layouts, while the optimized multi-slice design reduces shading impact and power loss ([PV Tech](https://www.pv-tech.org/industry-updates/ja-solar-launches-deepblue-5-0-in-australia/)). This release marks JA Solar's full strategic transition from P-type PERC to N-type TOPCon across its flagship residential and commercial lines.
4. Certifications & Listings
JA Solar modules destined for the North American market are certified to the following standards:
- UL 61730-1/2 (safety) and UL 61215-1/2 (design qualification) — the current North American module safety and performance standards.
- IEC 61215 and IEC 61730 — international design and safety qualifications.
- IEEE 1547 inverter interconnection compatibility.
- BloombergNEF Tier 1 bankability listing.
- Buy America / BABA — JA Solar does not manufacture in the United States, so its modules are not Buy America-compliant. For federally funded projects requiring domestic content, installers should select US-made alternatives from PES Supply.
5. Warranty Terms
JA Solar offers one of the most competitive warranty packages in the Tier 1 segment. The DeepBlue 4.0 Pro and 5.0 N-type TOPCon lines carry:
- Product (materials/workmanship) warranty: 25 years.
- Performance warranty: 30-year linear power output, with first-year degradation ≤2% and annual degradation of just 0.3%/year thereafter — guaranteeing roughly 87–89% of nameplate power at year 30 ([JA Solar DeepBlue 4.0 Pro](https://www.jasolar.eu/en/products/deep-blue-40)).
Warranty claims are processed through the original authorized dealer or distributor. As a PES Supply authorized dealer, you initiate claims directly through our support team, which coordinates JA Solar's RMA process — including serial-number verification, diagnostic documentation, and replacement-module shipment. Keep your PES Supply invoice as proof of purchase, as the warranty start date is the delivery date to the original customer.
6. PES Supply Authorized Dealer
PES Supply is an authorized dealer for JA Solar, meaning every JA Solar module we sell is genuine factory-direct product backed by the full manufacturer warranty. Benefits of buying through PES Supply include:
- Genuine, warrantied product with full chain-of-custody documentation.
- Stock availability across popular DeepBlue 4.0 Pro residential and commercial models, with rotating inventory in our distribution warehouse.
- Lead times: In-stock orders ship within 7–10 business days delivery. For large project volumes or out-of-stock configurations, contact our sales team for a custom allocation and ETA.
- Volume pricing for contractors, EPCs, and developers purchasing pallet or container quantities.
7. Popular JA Solar Products at PES Supply
These are among the most frequently ordered JA Solar modules through PES Supply:
| Model | Watts | Cell Tech | Efficiency | Dimensions | Warranty | Price Range |
|---|---|---|---|---|---|---|
| JAM54D41 (DeepBlue 4.0 Pro, 108-cell) | 410–430 W | N-type TOPCon | 21.8–22.8% | 1722 × 1134 × 30 mm | 25-yr product / 30-yr power | $0.28–$0.34/W |
| JAM66D42 (DeepBlue 4.0 Pro, 132-cell) | 490–525 W | N-type TOPCon | 22.0–23.0% | 2095 × 1134 × 30 mm | 25-yr product / 30-yr power | $0.27–$0.32/W |
| JAM72D42 (DeepBlue 4.0 Pro, 144-cell) | 575–610 W | N-type TOPCon | 22.2–23.3% | 2278 × 1134 × 30 mm | 25-yr product / 30-yr power | $0.26–$0.31/W |
| JAM78D42 (DeepBlue 4.0 Pro, 156-cell) | 630–650 W | N-type TOPCon | 22.4–23.4% | 2465 × 1134 × 30 mm | 25-yr product / 30-yr power | $0.25–$0.30/W |
Efficiency ranges reflect JA Solar's stated 21.8–23.3% lineup span ([SolarTech Online](https://solartechonline.com/blog/ja-solar-panels-review-2025/)). Prices are contractor estimates and vary with order volume and market conditions.
8. Technical Comparison
How does JA Solar stack up against other Tier 1 manufacturers available at PES Supply?
| Brand | Flagship Tech | Peak Efficiency | Power Warranty | Price Position |
|---|---|---|---|---|
| JA Solar | N-type TOPCon (Bycium+) | ~23.4% (24.8% on 5.0) | 30-year | Mid-range (value) |
| LONGi | HPBC 2.0 back contact | ~24.8% | 30-year | Mid-range |
| Jinko | N-type TOPCon (Tiger Neo) | ~23.4% (24.8% on 3.0) | 30-year | Mid-range (value) |
| REC | HJT (Alpha) | ~22.6% | 25-year (92%) | Premium |
JA Solar distinguishes itself with an exceptional price-to-performance ratio. At roughly $2.50–$2.80 per watt retail, it undercuts premium brands like REC while matching or exceeding them on efficiency and warranty length ([SolarTech Online JA Solar review](https://solartechonline.com/blog/ja-solar-panels-review-2025/)). Its 0.3%/year degradation rate is among the best in the industry, yielding more lifetime energy per watt installed.
9. Installation Notes
- Frame: Anodized aluminum alloy frame, 30–35 mm profile, compatible with standard clamping systems and most rail-based mounting hardware.
- Connectors: MC4-compatible PV connectors (JA Solar-branded) — compatible with standard MC4 extension cables and most string inverter inputs.
- Junction box: IP68-rated, with three bypass diodes for partial-shade protection.
- Glass: 3.2 mm tempered low-iron glass (mono) or 2.0 mm dual-glass on bifacial models.
- Mechanical load: Rated for up to 5400 Pa front load and 2400 Pa rear load with standard four-point clamping — verify clamp placement per the installation manual.
- Mounting compatibility: Works with all major racking systems including IronRidge, Unirac, and Quick Mount PV. Use the manufacturer-specified clamp zones to maintain the load rating.
10. Frequently Asked Questions
Is JA Solar a Tier 1 manufacturer?
Yes. JA Solar is a BloombergNEF Tier 1 manufacturer and has ranked #1 globally by module shipment volume for 2023–2025. Tier 1 status is important for project financing and bankability.
What is the difference between DeepBlue 4.0 Pro and DeepBlue 5.0?
DeepBlue 4.0 Pro uses the Bycium+ N-type TOPCon cell and is the current high-volume production line. DeepBlue 5.0, launched in January 2025, uses the next-generation Bycium+ 5.0 cell with higher efficiency (up to 24.8%) and up to 670 W output, along with an upgraded full-screen module design ([JA Solar](https://www.jasolar.com/index.php?m=content&c=index&a=show&catid=399&id=176)).
Are JA Solar panels eligible for Buy America / BABA projects?
No. JA Solar manufactures in China and does not have US production, so its modules are not Buy America-compliant. For federally funded projects requiring domestic content, PES Supply offers BABA-compliant options from Mission Solar and Silfab.
What is the warranty on JA Solar panels?
DeepBlue 4.0 Pro and 5.0 N-type modules carry a 25-year product warranty and a 30-year linear performance warranty guaranteeing approximately 87–89% of rated power at year 30, with only 0.3% annual degradation.
What is the lead time when ordering from PES Supply?
In-stock JA Solar modules ship within 7–10 business days delivery. For large project volumes or specific wattage bins, contact our sales team for a custom allocation and estimated arrival date.
11. Shop JA Solar Products
Ready to source JA Solar panels for your next project? PES Supply stocks a deep inventory of DeepBlue 4.0 Pro and 5.0 modules for residential, commercial, and utility applications. Explore the full selection of solar panels or browse JA Solar-specific listings:
Shop JA Solar Products at PES Supply →
PES Supply (https://www.portlandiaelectric.supply) is a B2B electrical and solar distributor offering 50,000+ SKUs from 169 authorized brands. This article is provided for informational purposes; verify all specifications against the manufacturer's current datasheet before final design.