What is the efficiency of the solar cells used?

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

What is the maximum system voltage for this module?

The maximum system voltage for this DC solar panel is 1000V.

15W 5V 18V Polycrystalline PV Module Solar Panel DC USB Charger Solar Power Supply Agent Price

Name: 15W 5V 18V Polycrystalline PV Module Solar Panel DC USB Charger Solar Power Supply Agent Price
Brand: Shenzhen Just-Solar Co., Ltd.
SKU: 744295692

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

10PCS;36PCS

Model NO.

JS-SPP015W

Application

Light Industry

Condition

New

Certification

EST, ISO, CB, CE

Material

Polycrystalline Silicon

Output Power (W)

15W

Voltage (V)

5V; 6V;18V

Dimension (mm*mm)

355*350*18mm

Open-Circuit Voltage (Voc)

22.5

Short-Circuit Current (Isc)

0.92

Operating Voltage (Vmp)

17.96

Operating Current (Imp)

0.84

Module Weight (Kg)

1.4kgs

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 optimal energy conversion.

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

Long Lifespan Warranty: 25-year performance warranty ensuring 80% power output after 25 years of use.

Professional OEM/ODM: Supports custom branding and logo printing on gift boxes and products for free.

Multiple Certifications: Certified by CE, RoHS, TUV, FCC, PSE, IEC61215, and IEC61730 standards.

Fast Delivery Options: Sample delivery within 3 days; trial orders in 10-15 days; mass orders in 25-30 days.

Robust Load Resistance: Withstands max static loads of 2400Pa and hail impacts of 25mm at 23m/s.

Company profile

Shenzhen Just-Solar Co., Ltd.

Guangdong, China

Business Type: Manufacturer/FactoryExport Year: 2004-05-05Nearest Port: SHEN ZHENAverage Response Time: ≤9.91hTerms 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.

Product Q&A

Q:What is the warranty period for this solar panel?

The product comes with a 25-year performance warranty, guaranteeing 100% power output for 1 year, 95% for 10 years, 90% for 15 years, and 80% for 25 years.

Q:Can I customize the solar panel with my brand logo?

Yes, we support customer brand logo printing on gift boxes and products for free as part of our OEM/ODM services.

Q:What certifications does this solar module have?

The module is certified with CE, RoHS, TUV, FCC, PSE, ISO 9001:2008, and meets IEC61215 & IEC61730 standards.

Q:What are the delivery times for different order quantities?

Sample orders are delivered within 3 days, trial smaller quantity orders take 10-15 days, and mass quantity orders take 25-30 days.

Q:What payment methods do you accept?

We accept T/T, L/C, Western Union, and PayPal. Prices can be quoted as EXW, FOB, CFR, or CIF.