What is the efficiency of the solar cells?

The polycrystalline silicon solar cells have an efficiency rating of 20.5% to 22%.

What are the dimensions and weight of the module?

The dimensions are 685*515*25mm and the weight is 4.6 kgs.

What payment methods do you accept?

We accept T/T, L/C, Western Union, and PayPal.

50W 18V Polycrystalline PV Module Solar Panel DC USB Charger Solar Power Supply Factory Original

Name: 50W 18V Polycrystalline PV Module Solar Panel DC USB Charger Solar Power Supply Factory Original
Brand: Shenzhen Just-Solar Co., Ltd.
SKU: 744296402

Guangdong, ChinaShenzhen Just-Solar Co., Ltd.

US$0.20

1-999 W

US$0.18

1,000-4,999 W

US$0.16

5,000-9,999 W

US$0.14

10,000+ W

Sample price:US$0.22/w.Request sample

Product profile

Customization

Available

Warranty

10 Years

Number of Cells

Model NO.

JS-SPP050W

Application

Light Industry

Condition

New

Certification

EST, ISO, CB, CE

Material

Polycrystalline Silicon

Output Power (W)

50W; 55W

Voltage (V)

18V

Dimension (mm*mm)

685*515*25mm

Open-Circuit Voltage (Voc)

22.5

Short-Circuit Current (Isc)

3.06;3.37

Operating Voltage (Vmp)

17.96

Operating Current (Imp)

2.78;3.06

Module Weight (Kg)

4.6kgs

Transport Package

Carton and Pallets

Specification

CE, ROHS, TUV, IEC61215, IEC61730

Trademark

JUST

Origin

China

HS Code

8541409000

Production Capacity

10000PCS/Month

Key features

10-Year Performance Warranty: Guarantees 100% power for 5 years, 95% for 10 years, and 90% for 15 years.

High Efficiency Solar Cells: Polycrystalline silicon cells with 20.5-22% efficiency rating.

Customizable Output Power: Available in 50W and 55W output power options.

Durable Construction: Features low-iron tempered glass and anodized aluminum alloy frame.

Multiple Certifications: Certified by TUV, CE, RoHS, FCC, PSE, ISO 9001, and IEC standards.

OEM and ODM Services: Professional manufacturing with support for custom branding and designs.

Fast Sample Delivery: Sample orders can be delivered within 3 days.

Company profile

Shenzhen Just-Solar Co., Ltd.

Guangdong, China

Business Type: Manufacturer/FactoryExport Year: 2004-05-05Nearest Port: SHEN ZHENAverage Response Time: ≤9.62hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, FAS, DDP, FCA, EXW

AI-Powered supplier vetting

SummaryShenzhen Just-Solar Co., Ltd. is identified as a China-based manufacturer/factory operating in Guangdong, with separate production entities described for domestic and overseas business. The supplier reports multiple management-system certifications, 50 quality-control staff, more than 10 production lines, extensive solar-product output, export activity since 2004, and sales coverage across multiple global regions. It states that it provides product design, R&D, manufacturing, shipment arrangement, warranties, after-sales service, and market suggestions. The available information supports strengths in manufacturing scale, export experience, product development, customization, and stated service capabilities. However, financial credibility cannot be assessed because relevant financial information is excluded, and the representative-title record is invalid or unusable.

Supplier typeThe supplier is explicitly classified as a Manufacturer/Factory, with production locations in Shenzhen, Guangdong, China. Its descriptions identify separate production entities for domestic and overseas business, supporting direct manufacturing involvement rather than a purely trading profile.

CertificationsThe supplier lists BSCI, ISO 9000, ISO 9001, ISO 14001, ISO 14000, HSE, GMP, EICC, and QC 080000 as supplier-management-system certifications. The slice does not provide certificate numbers, validity dates, issuing bodies, or scopes, so the assessment is based on the stated holdings only.

After-Sales capabilityThe supplier explicitly states that it provides a warranty period for each product, after-sale service, and reasonable suggestions for solar products and markets. It also describes support across the full shipment process, indicating a stated service capability beyond production.

R&D capabilityThe supplier states that it designs, researches, develops, and manufactures solar products according to customer requirements, and reports total R&D-engineer experience of 31–40 years. These statements support product-development capability, although they do not quantify patents, laboratories, or new-product launches.

Production capacityThe supplier is identified as a factory and reports more than 10 production lines, 50 quality-control staff, and substantial stated output for solar systems, panels, chargers, and lights. It also lists a broad solar-product portfolio and export coverage across multiple regions, supporting significant production breadth and capacity.

Customization capabilityThe supplier explicitly states that it designs, researches, develops, and manufactures solar products according to customer requirements and supplies products in customers' quality classes. This directly supports customization in product design and quality specifications.

Client casesThe supplier lists Shell, Geodrill, Newmont, Tullow, and Heineken as main customers. These named customer references provide explicit evidence of customer cases, although the slices do not include project details, transaction scope, or verification documentation.