What payment terms do you accept?

We accept T/T, L/C, D/P, PayPal, and Western Union depending on the order amount.

What is the maximum system voltage?

The maximum system voltage is DC1500V.

Are the cells Grade A quality?

Yes, we use Grade A monocrystalline silicon cells to ensure high performance.

Shingled Solar Panels Full Black 420W 430W 440W Shingled Solar Roof Panel for Home Solar System

Name: Shingled Solar Panels Full Black 420W 430W 440W Shingled Solar Roof Panel for Home Solar System
Brand: Sail Solar Energy Co., Ltd
SKU: 2104539625

Anhui, ChinaSail Solar Energy Co., Ltd

US$0.15-0.18

100,000 watt

Sample price:US$80.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Yes

Warranty

25 Years

Application

Industrial

Condition

New

Certification

ISO, CE

Material

Monocrystalline Silicon

Frame

Black Anodized Aluminium Alloy

Brand

Sail Solar

Maximum System Voltage

DC1500V

Solarcell Size &Ouantity

210*38mm(8*32=256PCS)

Cable

4mm2; Portrait/Landscape Length

Panel Dimensions

1723X1134X35mm

Cell Type

Grade a Monocrystalline Silicon

Transport Package

Wooden Pallet and Carton Box

Specification

1723mm x1134mm x 35mm

Trademark

Sail Solar

Origin

China, Hefei

Production Capacity

100000PCS/Month

Key features

25-Year Warranty: Comprehensive 25-year warranty coverage for long-term reliability.

High Efficiency Cells: Grade A monocrystalline silicon cells with up to 22.1% module efficiency.

Customizable Output Cable: Output cable length and configuration can be customized to specific needs.

OEM Branding Available: OEM service available with custom logo printing on panels.

Robust Frame Design: Anodized black aluminum alloy frame for durability and corrosion resistance.

IP68 Junction Box: IP68 rated junction box with three diodes for superior weather protection.

Fast Delivery: Standard delivery within 5-7 working days for most orders.

Company profile

Fast DeliveryImporters and ExportersIn-stock CapacityCustomization from Samples

Sail Solar Energy Co., Ltd

Anhui, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 Year CertifiedNearest Port: Shanghai PortAverage Response Time: ≤5.90h

AI-Powered supplier vetting

SummarySAIL SOLAR ENERGY CO., LTD is based in Hefei, Asia, and supplies hybrid inverters, lithium and lead-acid batteries, N-type solar panels, and system solutions. Its stated business scope covers photovoltaic, solar thermal, and wind-related products, as well as import and export activities. The supplier reports OEM and ODM capabilities and broad customization options, but it launched no new products in the past year and has only one R&D engineer, with no available SDK. Overseas service infrastructure is limited: no overseas showroom, agents, branches, or offline trade-show participation are reported. Quality and service governance also appears insufficiently documented, including no written complaint-handling, corrective-action, or supplier-assessment procedures, and zero quality-control testing equipment is reported. Financial information is present only as year labels, so credibility cannot be determined from the provided evidence.

Supplier typeThe supplier is an energy-product supplier and technology importer/exporter, offering hybrid inverters, batteries, N-type solar panels, and system solutions. Its stated scope also includes photovoltaic equipment, solar thermal products, and wind turbines and parts, indicating a broad renewable-energy trading and supply profile.

After-Sales capabilityAfter-sales and service infrastructure appears limited: the supplier reports no overseas showroom, agents, branches, overseas-service countries, or offline trade-show participation. It also has no written complaint-handling or corrective/preventive-action procedures, although stated lead times are within 15 workdays and multiple payment and quotation terms are accepted.

R&D capabilityThe supplier provides ODM services and has one R&D engineer whose stated responsibility is preparing samples to customer requirements. However, it launched no new products in the past year, has no available SDK, and reports no recent product-information R&D activity, limiting evidence of strong independent innovation.

Production capacityThe supplier reports 10 qualified service suppliers and peak- and off-season lead times within 15 workdays. However, it reports zero quality-control testing equipment, unknown traceability and quality-assurance status, and no written supplier-assessment procedures, so production capability is not adequately supported by quality-control evidence.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization. Its ODM availability, OEM service for well-known brands, and sample preparation according to customer requirements further support customization capability.