What certifications do your solar panels have?

Our solar panels are certified by EST, ISO, CB, and CE, ensuring they meet international quality and safety standards.

What is the after-sales service policy?

We provide 24-hour after-sales service to assist customers with any technical issues or inquiries promptly.

250W 350W High Efficiency 280W Monocrystalline Solar Cell Price Lowest for Rooftop Custom Shape Solar Panel

Name: 250W 350W High Efficiency 280W Monocrystalline Solar Cell Price Lowest for Rooftop Custom Shape Solar Panel
Brand: Qingdao Panshen Metal Co., Ltd.
SKU: 2265977015

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

25-Year Warranty: Comprehensive 25-year warranty coverage for peace of mind.

High Efficiency Cells: Monocrystalline silicon cells with options for PERC and Half Cell technology.

Customizable Design: Customized color, shape, and dimensions available to meet specific needs.

Wide Power Range: Available in 10W to 730W options, including 250W, 350W, and 400W models.

Durable Construction: Anodized aluminum alloy frame with 3.2mm low iron tempered glass.

IP67/IP68 Rated: Waterproof junction box ensuring reliability in various weather conditions.

Global Certifications: Certified by EST, ISO, CB, and CE standards for quality assurance.

24-Hour Support: Dedicated after-sales service available within 24 hours.

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: ≤1.52h

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 in the 1980s are still working at expected capacity, demonstrating remarkable reliability and longevity.

Q:What is the warranty period for these solar panels?

We provide a 25-year warranty for our solar panels, ensuring long-term performance and customer satisfaction.

Q:Are customization options available?

Yes, we offer customized color, shape, and dimensions. OEM and ODM services are also acceptable to meet specific project requirements.