What is the efficiency of the solar panel?

The efficiency ranges from 20.50% to 21.50% depending on the specific model.

Factory Outlet 550W Half Cell Mono Monocrystalline Solar Panel Solar PV Module

Name: Factory Outlet 550W Half Cell Mono Monocrystalline Solar Panel Solar PV Module
Brand: ZHEJIANG LANXIANG ELECTROMECHANICAL CO., LTD
SKU: 2114141675

Zhejiang, ChinaZHEJIANG LANXIANG ELECTROMECHANICAL CO., LTD

US$0.141

10-99 Pieces

US$0.138

100-999 Pieces

US$0.134

1,000-9,999 Pieces

US$0.131

10,000+ Pieces

Sample price:US$77.50/piece.Request sample

Product profile

Customization

Available

After-sales Service

1year

Warranty

<5 Years

Model NO.

JD550-DE21M(18)

Number of Cells

72pcs

Application

Agriculture

Condition

New

Certification

Material

Monocrystalline Silicon

Max Voltage

41.6V

Max Current

13.21A

Voc (V)

49.8V

Isc (a)

14.02

Efficiency %

21.3

Power Tolerance

0-+5

Transport Package

Carton

Specification

2278*1134*30mm

Origin

China

HS Code

85414020

Key features

High Efficiency 21.5%: Monocrystalline silicon cells achieve up to 21.5% conversion efficiency for maximum power output.

Low Attenuation Rate: Features lower attenuation values in the first year and year by year for long-term performance.

Cost Effective Design: Effectively reduces system BOS costs and achieves lower cost per kWh to improve project profitability.

Flexible Customization: Supports full customization, minor customization, and flexible customization from samples or designs.

OEM/ODM Service: Manufacturer offers both OEM and ODM services with 1 R&D engineer for product development.

Strict Quality Control: 100% inspection including visual and function checks with traceable raw materials.

CE Certified Product: Product holds CE certification ensuring compliance with international safety and quality standards.

Fast Lead Time: Average lead time within 15 workdays for both peak and off-season periods.

Company profile

ODM ServicesOEM Services

ZHEJIANG LANXIANG ELECTROMECHANICAL CO., LTD

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 3 Years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤5.69h

AI-Powered supplier vetting

SummaryThe supplier manufactures and sells photovoltaic equipment, motors, pumps, fans, environmental-protection equipment, and fishery machinery. It reports three production lines, in-stock capacity, overseas warehouse capability, 100% finished-product inspection, raw-material traceability, ODM services, and OEM services for well-known brands. It states peak- and off-season lead times within 15 working days and exports to Africa, Southeast Asia/Mideast, and Europe. However, it has no valid manufacturing-capacity contract with related subcontractors, no overseas agents or branches, no overseas showroom, and no written procedures or records for inspection, supplier assessment, corrective actions, or complaint handling. Certification information and customer cases are not provided. Financial information is only represented by year labels, without assessable financial metrics.

Supplier typeThe supplier is a manufacturer and seller of mechanical and electrical equipment, with stated activities covering photovoltaic equipment, motors, pumps, fans, environmental-protection equipment, and fishery machinery. Its company description specifically identifies pumps, motors, fans, and related equipment as its main products.

R&D capabilityThe supplier states that it conducts product research and development and provides ODM services. However, it reports no available SDK, and no further evidence such as patents, dedicated R&D resources, or documented development outcomes is provided.

Production capacityThe supplier reports three production lines, annual output above the stated threshold, inventory capability, a 15-working-day peak and off-season lead time, 100% finished-product inspection, and raw-material traceability. Production-capacity verification is weakened because there is no valid manufacturing-capacity contract with its related subcontractors, while inspection and corrective-action documentation is incomplete.

Customization capabilityThe supplier explicitly offers customization from samples and ODM services, demonstrating support for product customization and original design manufacturing. No SDK is available, which limits evidence of software or platform integration capability but does not negate the stated hardware customization services.