Is the solar panel waterproof?

Yes, the junction box has a protection degree of IP65, making it resistant to dust and water jets.

What certifications does the product have?

The product holds TUV, CE, ROHS, FCC, PSE, IEC61215, IEC61730, and ISO 9001:2008 certifications.

What is the warranty period for the product?

The ETFE material has a 5-year warranty, and the overall product lifetime is guaranteed to be more than 6 years.

21W Sunpower Solar USB Portable Mobile Phone Battery Power Foldable Panel Charger Power ISO9001

Name: 21W Sunpower Solar USB Portable Mobile Phone Battery Power Foldable Panel Charger Power ISO9001
Brand: Shenzhen Just-Solar Co., Ltd.
SKU: 745028192

Guangdong, ChinaShenzhen Just-Solar Co., Ltd.

US$34.00

500-999 Pieces

US$33.00

1,000-4,999 Pieces

US$32.00

5,000-9,999 Pieces

US$31.00

10,000+ Pieces

Sample price:US$40.00/piece.Request sample

Product profile

Customization

Available

Compatible Brand

Charge for All Mobile Phones

Type

Portable

Model NO.

JS-ETS021-01

Power Source

Solar

Quick Charging Function

With Quick Charging Function

Charger Cable Length

8 to 9.9 Feet

Over-Current Protection

With Over-Current Protection

Display

Without Display

Color

Optional

Socket Type

USB

Customized

Peak Power Pm(W)

Max. Power Voltage Vmp(V)

6/18

Max. Power Current Imp(a)

3.5/1.15

Size/Weight

302*175*6mm/ 505*302*2mm/0.6 Kgs

Front Cover(Material/Thickness)

ETFE/0.025mm

Back Material

Glass Fiber PCB/1.6mm

Output

USB:5V3.5A DC18V/1.15A

Warranty

ETFE: 5 Years

Transport Package

Color Box

Specification

10pcs/carton

Trademark

JUST

Origin

Shenzhen

HS Code

94054090

Production Capacity

100000PCS/Month

Key features

High Efficiency Solar Cells: Sunpower cells with 20-21% efficiency and ETFE front cover for 90-98% light transmittance.

Foldable and Portable Design: Compact folding size of 302*175*6mm, weighing only 0.6kg, ideal for backpacks and travel.

Customizable Appearance: Color, shape, holes, and silk print logo are fully customizable for OEM/ODM requirements.

Durable ETFE Material: ETFE front cover offers superior weather resistance, flexibility, and a lifespan of 15-20 years.

Multi-Device Compatibility: USB output (5V/3.5A) charges mobile phones, iPads, cameras, and MP3 players anywhere with sunlight.

Fast Charging Capability: Quick charging function allows battery charging in 1-4 hours depending on device capacity.

Comprehensive Certifications: Products certified with TUV, CE, ROHS, FCC, PSE, and ISO 9001:2008 standards.

Professional Manufacturing: Factory with 10000 sqm area, 20 R&D engineers, and 10 production lines ensures high quality.

Company profile

Shenzhen Just-Solar Co., Ltd.

Guangdong, China

Business Type: Manufacturer/FactoryExport Year: 2004-05-05Nearest Port: SHEN ZHENAverage Response Time: ≤8.69hTerms 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.