What is the efficiency of the solar cells?

The Sunpower silicon cells have an efficiency of 21-22.5%.

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

50W EL Inspection Sunpower ETFE Soft Flexible Bendable Solar Panel DC Mobile Power Charger

Name: 50W EL Inspection Sunpower ETFE Soft Flexible Bendable Solar Panel DC Mobile Power Charger
Brand: Shenzhen Just-Solar Co., Ltd.
SKU: 744363312

Guangdong, ChinaShenzhen Just-Solar Co., Ltd.

US$45.00

1-999 Pieces

US$40.50

1,000-4,999 Pieces

US$39.00

5,000-9,999 Pieces

US$37.50

10,000+ Pieces

Sample price:US$45.00/piece.Request sample

Product profile

Customization

Available

Warranty

10 Years

Number of Cells

Model NO.

JT-ETFE50WA

Application

Light Industry

Condition

New

Certification

EST, ISO, CB, CE, FCC

Material

Sunpower

Peak Power Pm(W)

Open Circuit Voltage Voc(V)

21.1

Max. Power Voltage Vmp(V)

17.6

Max. Power Current Imp(a)

2.85

Short Circuit Current Isc(a)

3.05

Dimensions(LWT)/ Weight(Kgs)

540*530*2mm/1 Kgs

Transport Package

Carton and Pallets

Specification

IEC61215, IEC61730, TUV

Trademark

JUST

Origin

China

HS Code

8541409000

Production Capacity

5000000W/Month

Key features

High Efficiency Sunpower Cells: Features 32 Sunpower silicon cells with 21-22.5% efficiency for superior performance.

Durable ETFE Flexible Cover: Uses 0.025mm ETFE material offering 90-98% light transmittance and 15-20 year lifespan.

Long-Term Power Warranty: Includes 100% power for 5 years, 95% for 10 years, 90% for 15 years, and 80% for 25 years.

Customizable Design Options: Offers optional holes, shapes, and USB connector types to meet special requirements.

IP65 Protection Rating: Junction box provides high protection against dust and water for outdoor durability.

Multiple Certification Standards: Certified by TUV, CE, RoHS, FCC, PSE, ISO 9001, and IEC standards for global safety.

Fast Sample Delivery: Samples can be delivered within 3 days, with trial orders shipped in 10-15 days.

Company profile

Shenzhen Just-Solar Co., Ltd.

Guangdong, China

Business Type: Manufacturer/FactoryExport Year: 2004-05-05Nearest Port: SHEN ZHENAverage Response Time: ≤8.01hTerms 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.