Is OEM or ODM service available?

Yes, we support OEM and ODM services, including free logo printing on products and gift boxes.

What is the efficiency of the solar cells?

The polycrystalline silicon cells have an efficiency of 20.5-22%.

What is the maximum system voltage?

The maximum system voltage is 1000V DC.

3W 5V Polycrystalline Solar Panel PV Module Power Supply DC USB Charger Good Price

Name: 3W 5V Polycrystalline Solar Panel PV Module Power Supply DC USB Charger Good Price
Brand: Shenzhen Just-Solar Co., Ltd.
SKU: 744228702

Guangdong, ChinaShenzhen Just-Solar Co., Ltd.

US$2.00

1-999 Pieces

US$1.80

1,000-4,999 Pieces

US$1.60

5,000-9,999 Pieces

US$1.40

10,000+ Pieces

Sample price:US$2.20/piece.Request sample

Product profile

Customization

Available

Warranty

10 Years

Number of Cells

10PCS

Model NO.

JS-SPP03W

Application

Light Industry

Condition

New

Certification

EST, ISO, CB, CE

Material

Polycrystalline Silicon

Output Power (W)

Voltage (V)

5V; 6V

Dimension (mm*mm)

220*135*17mm; 202*156*15mm

Open-Circuit Voltage (Voc)

6.25V; 7.5V

Short-Circuit Current (Isc)

0.66A; 0.55A

Operating Voltage (Vmp)

4.99V; 5.99V

Operating Current (Imp)

0.6A; 0.5A

Module Weight (Kg)

0.5kgs; 0.6kgs

Transport Package

Carton and Pallets

Specification

CE, ROHS, TUV, IEC61215, IEC61730

Trademark

JUST

Origin

China

HS Code

8541409000

Production Capacity

10000PCS/Month

Key features

High Efficiency Cells: Polycrystalline silicon cells with 20.5-22% efficiency for superior power generation.

Durable Construction: Features low-iron tempered glass, anodized aluminum frame, and IP65 junction box.

Long Warranty Life: 10-year warranty covering 95% power output, ensuring long-term reliability.

Multiple Certifications: Certified by TUV, CE, RoHS, FCC, PSE, ISO, CB, and UL for global compliance.

Customizable Options: Customized output power, voltage, dimensions, and weight available for specific needs.

Professional OEM/ODM: Supports OEM and ODM services with free logo printing on products and packaging.

Fast Delivery: Samples delivered within 3 days; mass orders delivered in 25-30 days.

Company profile

Shenzhen Just-Solar Co., Ltd.

Guangdong, China

Business Type: Manufacturer/FactoryExport Year: 2004-05-05Nearest Port: SHEN ZHENAverage Response Time: ≤8.04hTerms 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.