What is the warranty period for the solar panels?

We provide a 12-year product warranty and a 25-year linear power output guarantee.

What is the conversion efficiency of these panels?

Using monocrystalline silicon PERC technology, the conversion efficiency is as high as 22.5%.

Are OEM and ODM services available?

Yes, OEM and ODM services are available, with customization options from samples.

Durable 550W Monocrystalline Solar Panels Factory Direct

Name: Durable 550W Monocrystalline Solar Panels Factory Direct
Brand: Zhengzhou Jiutian Technology Machinery Co., Ltd.
SKU: 2111538302

Henan, ChinaZhengzhou Jiutian Technology Machinery Co., Ltd.

US$0.33-0.45

5,000 Pieces

Product profile

Customization

Available

After-sales Service

Provide

Warranty

25 Years

Model NO.

Number of Cells

72pcs

Application

Residential Rooftops, Commercial Buildings, Agricu

Condition

New

Certification

Material

Monocrystalline Silicon

Power

0.6-2.75°

Size

800-2200mm

Peak Voltage

18.24-41.62V

Peak Current

6.6-12.98A

Open Circuit Voltage

21.8-49.55V

Short Circuit Current

7.06-13.89A

Transport Package

Container

Specification

1530*760*35

Trademark

Jiutian

Origin

Henan, China

HS Code

8419399090

Key features

High Efficiency PERC Tech: Monocrystalline silicon with 22.5% conversion efficiency, generating 15% more power than traditional panels.

Extreme Weather Durability: Withstands 5400Pa snow load and 2400Pa wind load; anti-PID, salt spray, and ammonia corrosion resistant.

Superior Weak Light Performance: Advanced battery design maintains high-efficiency power generation under cloudy or low light conditions.

Eco-Friendly & Sustainable: 40% reduced carbon footprint in production and over 95% material recyclability rate.

Company profile

Importers and ExportersYears of Export ExperienceExperienced TeamR&D Capabilities

Zhengzhou Jiutian Technology Machinery Co., Ltd.

Henan, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 13 Years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤0.83h

AI-Powered supplier vetting

SummaryJiutian is identified as a trading company in Zhengzhou and describes over two decades of activity in biomass processing, renewable energy, and waste-to-resource solutions. It has exported goods for 13 years and offers customization from samples, ODM services, and OEM services for well-known brands. However, the evidence indicates limited formal service-management controls, no overseas service infrastructure, no new products launched in the past year, one R&D engineer, and no SDK, ERP, OA, CRM, or SAP systems. CE certification is reported, while cooperation with Fortune 500 companies is explicitly absent. Financial credibility cannot be assessed because the provided information is insufficient and financial figures are excluded.

CertificationsThe supplier reports CE certification for product compliance with standards. The evidence confirms one certification but does not identify its scope, covered products, validity, or any additional certifications.

After-Sales capabilityThe supplier has two qualified service-capability suppliers and provides some supplier names, but it has no written procedures or records for service assessment, corrective and preventive actions, or customer-complaint handling. It also reports no overseas agents, branches, warehouses, showrooms, or offline trade-show participation, limiting evidence of structured and geographically distributed after-sales support.

R&D capabilityThe supplier offers ODM services and has one R&D engineer, but it reports no new products in the past year, no SDK availability, and no status for raw-material traceability identification. These explicit limitations outweigh the limited evidence of R&D-related service capability.

Customization capabilityThe supplier explicitly provides customization from samples and offers ODM services, demonstrating capability to adapt or develop products based on customer requirements. This is direct evidence of customization support, although no details are provided on engineering scope, tooling, or production scale.

Product Q&A

Q:Can you provide an investment income analysis table?

Of Course, we can!

Q:Do you provide detailed videos or 3D animations?

Yes. We have a professional technical team and engineers who will provide a complete production layout!

Q:Which areas do you serve?

We have a very big market in China local market, at the same time, we have exported our Solar Panels all over the world, including Europe, Africa, Middle-East, Asia, North America South America and so on, total more than 30 countries in the world.

Q:How long is the quality guarantee?

One year.

Q:How to purchase accessories?