Is customization available for these panels?

Yes, we offer OEM services with customizable types (Perc, Half Cell, All Black), connectors (MC4 compatible), and colors. Dimensions are also customizable for different wattages.

What is the warranty period for the solar panels?

We provide a 25-year warranty for our solar panels, covering mechanical defects and ensuring long-term performance reliability.

What are the main applications for these solar panels?

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

High-Power 300W 350W 400W PV Solar Panel Monocrystalline Module with Excellent Performance

Name: High-Power 300W 350W 400W PV Solar Panel Monocrystalline Module with Excellent Performance
Brand: Qingdao Panshen Metal Co., Ltd.
SKU: 2263602615

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

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.

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

High Efficiency Cells: Features 182x91mm or 182x105mm monocrystalline silicon cells for superior performance.

IP67/IP68 Protection: Junction boxes rated IP67 or IP68 for excellent waterproof and dustproof performance.

Durable Construction: Built with anodized aluminum alloy frames and low-iron tempered glass for strength.

Versatile Applications: Suitable for home systems, off-grid setups, street lighting, and large power stations.

OEM/ODM Service: Acceptable OEM service with customized types, connectors, and branding options.

Certified Quality: Products certified by EST, ISO, CB, and CE standards for global market compliance.

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 installed as early as the 1980s are still working at expected capacity, with longevity increasing significantly over the last 20 years.

Q:What size solar panel should I choose?

To calculate the needed size, consider your average energy requirements, current energy use in watts, and past utility bills. Dimensions are also customizable for various wattages.

Q: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 for global deployment.