What certifications do your solar panels have?

Our solar panels are certified with EST, ISO, CB, and CE, meeting international quality and safety standards for photovoltaic products.

What are the main applications for these solar panels?

They are widely used for large power stations, off-grid home systems, vehicle charging, battery charging, street lighting, monitoring systems, and solar water heating or refrigeration.

Fully Black 300W 320W 340W 360W with Black Frame Black Back Sheet High Efficiency Solar Panels OEM Orders

Name: Fully Black 300W 320W 340W 360W with Black Frame Black Back Sheet High Efficiency Solar Panels OEM Orders
Brand: Qingdao Panshen Metal Co., Ltd.
SKU: 2272702165

Shandong, ChinaQingdao Panshen Metal Co., Ltd.

US$0.095-0.15

350,000 watt

Product specifications

400w

350w

300w

Product profile

Customization

Available

After-sales Service

24 Hours

Warranty

25 Years

Model NO.

300w 350w 400w 450w 500w

Number of Cells

Application

Light Industry

Condition

New

Certification

EST, ISO, CB, CE

Material

Monocrystalline Silicon

Type

Perc, Half Cell, All Black

Connector

Mc4 Compatible Connector

Brand Name

Panshen Solar

Color

Customized Color

OEM

Acceptable OEM Service

Transport Package

as Client Require

Specification

normal

Trademark

as client require

Origin

China

HS Code

8541430000

Production Capacity

2000000PCS/Year

Key features

25-Year Warranty: Comprehensive 25-year warranty coverage for long-term reliability and peace of mind.

High Efficiency Mono Panels: Monocrystalline silicon cells with options for Half Cell, Perc, and All Black designs.

Customizable Dimensions: Dimensions are customizable for various wattages ranging from 30W to 710W.

OEM Service Available: Acceptable OEM service allowing for brand customization and tailored solutions.

Multi-Application Versatility: Suitable for home systems, off-grid, vehicle charging, street lighting, and more.

Premium Material Build: Constructed with low iron tempered glass and anodized aluminum alloy frames.

Certified Quality: Products hold EST, ISO, CB, and CE certifications ensuring international standards.

24-Hour After-Sales Support: Dedicated 24-hour after-sales service to assist customers with any inquiries.

Company profile

High Repeat Buyers ChoiceImporters and ExportersIn-stock CapacityFast Delivery

Qingdao Panshen Metal Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 5 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤1.35h

AI-Powered supplier vetting

SummaryQingdao Panshen Metal Co., Ltd. is identified as a Chinese manufacturer/factory offering solar panels, solar power systems, vehicle solar charging systems, solar cells, batteries, and related components. The investigation indicates five production lines, stated solar-panel output of 1,000,000 units, and broad export-market coverage. However, the records also show only two employees in general information, no available SDK, no written corrective/preventive-action procedures, zero quality-control test equipment, and no overseas warehouse or showroom. Financial records are indicated for 2023–2025, but no assessable financial results are provided. Certification, customization experience, and customer cases are not documented.

Supplier typeThe supplier is explicitly classified as a Manufacturer/Factory and a limited company based in Qingdao, Shandong, China. Its stated product scope centers on solar panels, solar systems, cells, batteries, and related components.

After-Sales capabilityService controls are weakly documented: there are no written corrective and preventive-action procedures or records, complaint handling has a procedure but no written records, and supplier-service assessment lacks written procedures and followed records. Inventory capability is stated, but there is no overseas warehouse or showroom.

R&D capabilityThe supplier offers a range of solar products, but the stated R&D capability specifically indicates no available SDK. No other measurable R&D, patent, engineering, or product-development evidence is provided.

Production capacityThe supplier states five production lines, solar-panel output of 1,000,000 units, inventory capability, and lead times within 15 working days in both peak and off-season. However, a valid manufacturing-capacity contract is not confirmed, and the general-information record lists only two employees, creating an unresolved capacity-data inconsistency.

Product Q&A

Q:How many solar panels do I need for my home?

An average home needs between 17 and 21 solar panels to fully offset utility bills. The exact number depends on your geographic location and individual panel specifications.

Q:Do solar panels work on cloudy days?

Yes, photovoltaic panels can use direct or indirect sunlight to generate power. They remain effective even when light is reflected or partially blocked by clouds, and rain helps keep them clean.

Q:How long do solar panels last?

Solar panels are designed to last more than 25 years. Many panels installed as early as the 1980s are still working at expected capacity due to increased longevity and reliability.

Q:What is the warranty period for these panels?

We provide a 25-year warranty for our solar panels, ensuring long-term performance and quality assurance for our customers.

Q:Are OEM and customization services available?

Yes, we offer acceptable OEM service and customization options. You can customize the type (Perc, Half Cell, All Black), connector, and color, as well as dimensions for various wattages.