Are there hidden fees in shipping?

Full containers have no hidden fees. For LCL, we recommend FOB or CIP terms to avoid unexpected destination port charges.

Can you provide DDP pricing or lower invoices?

We can provide DDP, but CIP is recommended for cost-effectiveness. We can cooperate with low invoice requests, but buyers must consider the associated risks.

What is the lead time for production?

The average lead time is within 15 workdays for both peak and off-season periods.

Wholesale Price High Efficiency Topcon Solar Panels 400W Customized PV Modules for Home

Name: Wholesale Price High Efficiency Topcon Solar Panels 400W Customized PV Modules for Home
Brand: Nantong Gamko New Energy Co., Ltd.
SKU: 1982122871

Jiangsu, ChinaNantong Gamko New Energy Co., Ltd.

US$0.07

1-39,999 watt

US$0.06

40,000-3,999,999 watt

US$0.05

4,000,000+ watt

Product specifications

GKA400W

Sample price:US$100.00/watt.Request sample

Product profile

Customization

Available

After-sales Service

Yes

Warranty

30 Years

Model NO.

GKA400W

Number of Cells

96(6X16)

Application

Household, Industial, Agriculture

Condition

New

Certification

ISO, CE, RoHS/FCC

Material

Monocrystalline Silicon

Module Dimensions

1530*1134*30mm

Weight

19kg

Open Circuit Voltage (Voc)

66.68V

Short Circuit Current (Isc)

7.24A

Voltage at Maximum Power (Vmpp)

57.98V

Current at Maximum Power (Impp)

6.90A

Module Efficiency Stc

23.05%

Junction Box

IP68 Rated

Cable

4mm2(0.006inches2), Portrait: 900mm (35.43inches)

Frame

Anodized Aluminum Alloy

Connector

PV Compatible

Stand Packaging

36PCS/Pallet

Front Cover

3.2mm Coated Termpered Glass

Transport Package

Wooden Pallet

Specification

1530*1134*30MM

Trademark

GAMKO & OEM

Origin

China

HS Code

8541430000

Production Capacity

2 Gw/Year

Key features

30-Year Warranty Coverage: Comprehensive warranty covering all solar panels for 30 years.

High Efficiency Technology: Utilizes PERC, TOPCON, and HJT technology with up to 23% efficiency.

Multi-Step Quality Control: Includes 3 EL tests and 2 Flash tests to avoid hidden cracks.

Wide Power Range: Available in 5W-800W mono and poly solar panels with custom sizes.

One-Stop Service: Provides design, production, transportation, and after-sales support.

Secure Payment Options: Accepts LC at sight, third-party inspection, and STS payment methods.

Professional Design Support: Engineers provide on-grid, off-grid, and hybrid system design guidance.

Extensive Certifications: Certified by CE, RoHS, FCC, IEC, ISO9001, ISO14001, and more.

Company profile

Nantong Gamko New Energy Co., Ltd.

Jiangsu, China

Business Type: Manufacturer/Factory, Trading CompanyAverage Response Time: ≤4.66h

About Our Factory & Business Background

Address10 #-B-1f, No. 606, Kaifa Avenue, Dagong Sci&Tech Industrial Park, Haian County, Prc, Nantong, Jiangsu, China

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Our Production Capability & Technical Expertise

Main ProductsSolar Panel, Solar System, Solar Inverter, Cable, Solar Bracket, Solar Air Condition, Solar Controller, PV Connector, Solar Refrigerator, Solar Battery

Our Industry Experience & Global Business Record

Main MarketsAfrica, Eastern Asia, Western Europe, Mid East, Eastern Europe

Product Q&A

Q:Why should I choose your company over cheaper competitors?

We perform 3 EL tests and 2 Flash tests to ensure quality and avoid hidden cracks, unlike cheaper factories that may use low-efficiency cells and skip testing, leading to safety risks.

Q:What payment methods do you accept?

We accept 30% advance and 70% before shipment, LC at sight, and STS payment via third-party platforms like Made-in-China for secure transactions.

Q:Can I inspect the goods before shipment?

Yes, you can arrange third-party inspections (BV, SGS). We cooperate fully and bear inspection costs for orders exceeding two containers.

Q:How do I claim warranty if problems occur after 10 years?

Submit claim sheets with the flash test report and warranty. We provide after-sales service and warranty coverage for all solar panels.

Q:Do you provide PV system design and installation services?

We provide professional design for systems up to 1.27MW and remote online installation guidance. Door-to-door installation is not currently available.