What certifications do your panels have?

Our solar panels are certified with EST, ISO, CB, and CE standards to ensure quality and safety.

Is OEM service available?

Yes, we accept OEM service and offer customization from designs and samples.

What is the minimum order quantity?

The minimum order quantity is 1 Set.

Best OEM Service Hot Sales 300W 350W Solar Panel with High Quality Solar System Perc & Half Cell Type

Name: Best OEM Service Hot Sales 300W 350W Solar Panel with High Quality Solar System Perc & Half Cell Type
Brand: Qingdao Panshen Metal Co., Ltd.
SKU: 2265997715

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

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

Wide Power Range: Available in 30W to 730W options including Mono and N-Type cells.

Customizable Dimensions: Panel sizes can be customized to fit specific project requirements.

High Efficiency Cells: Utilizes 182mm and 210mm Mono and N-Type Mono solar cells.

Durable Construction: Features anodized aluminum alloy frame and low iron tempered glass.

IP68 Junction Box: Waterproof junction box with 3 diodes for enhanced safety and performance.

Long Warranty: Comes with a 25-year warranty for long-term reliability and peace of mind.

Certified Quality: Products are certified with EST, ISO, CB, and CE standards.

OEM/ODM Service: Acceptable OEM service with customization from designs and samples.

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 indirect sunlight to generate power, though they are most effective in direct sunlight. Rain also helps keep panels efficient by washing away dust.

Q:How long do solar panels last?

Solar panels are designed to last more than 25 years. Many panels installed in the 1980s are still working at expected capacity today.

Q:What is the warranty period?

We provide a comprehensive 25-year warranty for our solar panels.

Q:Are the dimensions customizable?

Yes, panel dimensions can be customized. Standard sizes vary by wattage, but we accept customization requests.