What is the warranty for the inverter and controller?

The off-grid inverter and charge controller both come with a 10-year warranty.

Easy Install 18kw Solar Power Inverter off Grid Solar System 18kw

Name: Easy Install 18kw Solar Power Inverter off Grid Solar System 18kw
Brand: Rosen Solar Energy Co., Ltd.
SKU: 872900365

Anhui, ChinaRosen Solar Energy Co., Ltd.

US$0.70-1.30

5,000 Watt

Sample price:US$1.50/watt.Request sample

Product profile

Customization

Available

Warranty

25 Years

Condition

New

Model NO.

RS18KW-OFF

Certification

ISO, CB, CE, TUV, VDE, IEC61215, IEC617, Pid, Cec, Jet

Application

Home, Industrial, Commercial, Agriculture Irrigation

Specification

Normal

Solar Panel Type

Mono / Poly Solar Panel

Load Power

18000W

Output Frequency

50/60Hz

Output Voltage

EU: 230/380V Us: 120/240V

PV Cable

4/6/10/25mm^2 etc

Work Time (H)

24hours/Day

Mounting Brackets

Roof/Ground Installation

Accessories

Mc4 Spanner, Crimping Pliers etc

Inverter

Singe Phase/Three Phase

Controller Type

MPPT/PWM

Battery Type

AGM/Gel/Lithium Battery

Transport Package

Wooden Box / Carton Packing

Specification

18KW

Trademark

Rosen Solar

Origin

China

HS Code

8543709990

Production Capacity

100000watt/Week

Key features

25-Year Solar Panel Warranty: Rosen PV Modules come with a 25-year warranty for long-term reliability.

Customizable Mounting System: Mounting brackets support customized roof or ground installation for various terrains.

Flexible Battery Options: Supports GEL, AGM, or optional Lithium/LiFePO4 batteries for diverse storage needs.

Dual Voltage Compatibility: Inverter supports EU (230/380V) and US (120/240V) standards with 50/60Hz frequency.

High Efficiency MPPT Controller: 192Vdc 100A MPPT/PWM regulator with automatic recognition and IP67 protection.

Global Project Experience: Proven installations in Africa, South America, Middle East, and Asia for residential and industrial use.

Fast Lead Time: Average lead time within 15 working days for both peak and off-peak seasons.

Comprehensive Certification: Certified by ISO, CB, CE, TUV, VDE, IEC, PID, CEC, and JET standards.

Company profile

Fast DeliveryOverseas ServicesCustomization from SamplesOEM Services

Rosen Solar Energy Co., Ltd.

Anhui, China

Business Type: Manufacturer/FactoryExport Year: 2008-01-01Nearest Port: Ningbo Port, Shanghai Port, Shenzhen PortAverage Response Time: ≤9.06hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAT, FAS, DDP, DAP, CIP, CPT, Others, FCA

AI-Powered supplier vetting

SummaryRosen Solar Energy Co., Ltd. is identified as a Chinese manufacturer/factory offering solar panels, solar systems, lithium batteries, AGM/GEL batteries, and energy storage systems. The supplier reports broad customization, ODM, SDK availability, recent new-product activity, and OEM service for known brands. Its service procedures include documented assessment, corrective action, and complaint-handling records, although the approved-supplier list lacks approval signatures or dates. Overseas service is reported in Hungary for debugging, equipment installation, and training, but there are no overseas showrooms, agents, branches, or offline trade-show participation. Export sales represent 71%–90% of total sales, and the supplier reports peak- and off-season lead times within 15 working days. Production-scale information is inconsistent: one slice describes a battery factory with 145,000 square meters and more than 1,360 employees, while another lists 20 total employees. No certification information or...

Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory and a limited company in China. Its stated product scope includes solar panels, solar systems, lithium batteries, AGM/GEL batteries, and solar energy storage systems, while it is not reported as part of a larger company group.

After-Sales capabilityThe supplier reports overseas services in Hungary, including debugging, equipment installation, and training. It also has written procedures and followed records for service assessment, corrective and preventive actions, and customer complaint handling; however, it has no overseas showroom, agent, branch, or offline trade-show participation, and its approved-supplier list lacks approval signatures or dates.

R&D capabilityThe supplier reports new-product activity during the past year, ODM service, and an available SDK. Its business scope also explicitly includes R&D and production of solar LED and optical-material products, supporting an active product-development capability.

Production capacityThe supplier states that it manufactures, processes, assembles, sells, and installs related products, and describes battery production across lithium, VRLA AGM, VRLA GEL, OPzS, and OPzV types for multiple applications. Production-scale evidence is inconsistent because one slice reports a 145,000-square-meter factory with more than 1,360 employees, while another lists 20 total employees; capacity cannot therefore be reliably quantified.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. These capabilities are reported in both the R&D and design-service information, indicating broad customization coverage.

Client casesThe supplier reports providing OEM services for known brands, which is evidence of at least one type of customer engagement. However, no brand names, project details, order examples, or independently verifiable customer case information is provided.