What is the warranty period for the solar panels?

The Rosen Mono 380W solar panels included in this system come with a 25-year warranty.

Which inverter brands are available for this 4KW system?

Optional inverters include Growatt, SolarX, INVT, Solis, and Goodwe, available in single or three-phase.

Can the mounting brackets be customized?

Yes, the aluminum alloy or galvanized steel mounting brackets are customized for flat/pitched roofs or ground installation.

How long is the average lead time for delivery?

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

Is remote monitoring included in the package?

Yes, a WiFi module is included for plug-and-play free online monitoring of electricity production and consumption.

What payment terms are accepted?

Accepted payment terms include LC, T/T, D/P, PayPal, Western Union, Small-amount payment, and Money Gram.

What is the output voltage configuration?

The system supports EU: 220/230/240V or US: 110/120V, with frequency options of 50/60Hz.

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Flexible Payment Options:: Supports credit cards (Visa/MasterCard), PayPal, Apple Pay, Google Pay, many local payment methods and T/T (bank transfer).

4kw on Grid Solar Panel System

Rosen Solar Energy Co., Ltd.

8 yrs

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Product Highlights

25-Year Panel Warranty: Rosen Mono 380W solar panels come with a comprehensive 25-year warranty coverage.
Flexible Inverter Options: Choose from Growatt, SolarX, INVT, Solis, or Goodwe inverters in single or three-phase.
Customizable Mounting: Aluminum alloy or galvanized steel brackets for roof or ground installation, customized.
Smart WiFi Monitoring: Plug-and-play WiFi module for free online monitoring of electricity production and consumption.
Global Project Experience: Installed worldwide in Europe, Oceania, Asia, South America, and Africa for various scales.
Revenue Generation: Feed excess power to the grid to earn revenue based on local feedback policies.
Fast Lead Time: Average lead time within 15 workdays for both peak and off-season periods.

Product Attributes

Customization: Available
Warranty: 25 Years
Condition: New
Model NO.: RS4KW-ON
Certification: ISO, CB, CE, TUV, VDE, IEC61215, IEC617, Pid, Cec, Jet
Application: Home, Industrial, Commercial, Agriculture Irrigation
Specification: Normal, 4KW On Grid Solar Power System
Solar Panel Type: Mono / Poly Solar Panel
Load Power: 4 Kw
Output Frequency: 50/60Hz
Output Voltage: EU: 220/230/240V Us: 110/120V
Monitoring: WiFi/GPRS Device
PV Cable: 4/6/10mm^2 etc
Work Time (H): 24hours/Day
Mounting Brackets: Roof/Ground Installation
Accessories: Mc4 Spanner, Crimping Pliers etc
Inverter: 4kw Singe Phase or Three Phase
Transport Package: Wooden Box / Carton Packing
Trademark: Rosen Solar
Origin: China
HS Code: 8504402000
Production Capacity: 100000watt/Week

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Shipping Cost:: Contact the supplier about freight and estimated delivery time.

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Payment Guarantee: Platform-protected payments with refund support for eligible order issues.
Platform Logistics: Clearer shipment tracking with platform-supported logistics.
Inspection Service: Optional pre-shipment inspection for quality and quantity checks.
After-Sales & Dispute Handling: Platform-assisted dispute resolution, including refunds or returns when applicable.

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Product Description

Principle of solar energy
The grid -tied solar system is an electricity generating solar PV power system that is connected to the utility(State) grid. It consists of solar panels, one or several on grid inverters, Wifi Monitor Device, Mounting Brackets and grid connection equipments.

Users can feed excess power to the grid where it is consumed by other users. The feedback is done through a meter to monitor power transferred to AC loads single phase(110/120V;220/230/240Vac) or three phase(240V;380V;480Vac). If photovoltaic wattage substantially exceeds average consumption, the energy produced by the panels will be much in excess of the demand. In this case, the excess power can yield revenue by selling it to the grid with local feedback policy.

4kw on Grid Solar Panel System

4KW ON GRID SOLAR SYSTEM CONFIGURATION
No.	Photo	Item	Specification	Quantity	Warranty
1		Solar Panels	Rosen PV Module Model:RS380M-72 Mono 380W 72cells Dimension: 195699240mm Weight: 22kg	11 pcs	25 Years
2		PV Combiner Box	Rosen DC Combiner Box 1 input 1 output (Switches,Breaker, SPD, Anti-lightning)	1 pcs	10 Years
3		Grid Tied Inverter	On-grid/Grid-tie inverter Brand: Growatt. SolarX, INVT, Solis, Goodwe Optional 4KW Three Phase/ Single Phase Optional EU: 220/380/400Vac, US: 110/208/400Vac Frequency: 50/60Hz	1 pcs	10 Years
4		Monitoring System	Wifi module Plug and Play Electricity Production Consumption Data Free Online Monitoring Device	1 pcs	10 Years
5		Mounting Bracket	Aluminium Alloy / Galvanized steel Mounted on the flat/pitched roof or Ground For roof wind speed up to 40m/s Customized	1 sets	20 Years
6		PV Cable	Single-core PV Cable 4/6/10mm² (+;-) etc, UV Protection	100 meters	20 Years
6		MC4 compatible connector	30A 1000Vdc, Male/Female/Fuse IP67 Rated	11 pairs	15 Years
7		Installation Tools	Wire stripper; wire cutters; Crimping pliers For TYCO connector etc	1 sets	10 Years

Ready for Installation Package and Delivery
4kw on Grid Solar Panel System

Our Projects
Rosen On Grid Projects are installed all around the world, mainly in Europe, Oceania, Asia, South America, and Africa,for rooftop or ground installation, with Residential Systems 1-20Kilowatts, Commercial systems 30-100Kilowatts and Industrial projects 100kw to Megawatts.
4kw on Grid Solar Panel System

Rosen Solar Energy Co., Ltd.
Gary Bao (Overseas sales Manager )

About the Supplier

This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASR2391673". Items marked "" are certified.

Company Profile

Rosen Solar Group is an international high-tech and growing group company, specializing in R&D, which manufactures solar panels, Li/Gel/AGM batteries, solar pumps, solar inverters, controllers and PV power generation systems.

Our Solar panel factory covers 100, 000 Square Meters, has more than 500 employees. With an emphasis on management, research and development, Rosen Solar continuously manufactures leading-edge products. The modules range from 5W~500Wand are approved by TUV, UL, CE, IEC61215, IEC61730, CSA, CEC, JET.

Our Battery factory covers 145, 000 Square Meters, has more than 1360 employees. Batteries include Lithium Battery, 2V&12V VRLA AGM type, VRLA GEL type, OPzS and OPzV type which can be applied in Solar Power Plant Storage, Wind Energy Storage, Telecommunications, UPS, Fire Alarm System, Emergency Lighting, etc.

Our Solar Inverter, controller and pump factory covers 9, 000 Square Meters, has more than 650 employees. The inverters made by Rosen Solar include on-grid, off-grid and hybrid types, Controllers include PWM, and MPPT types, and pumps with DC and AC submersible and surfacce types. All types of inverters and controllers are approved by CE, UL.

We are professional manufacturer of solar systems, providing complete solar programs of off-grid, on-grid/grid-tie and hybrid power storage systems for partners around the world. Together with our products advantage, we can design professional PV system solutions, produce reliable system products and provide satisfying after sale service. With professional system engineer teams and EPC installer teams, we provide professional, reliable and trustful system solutions for you.

With advanced hi-tech and equipment, Rosen solar has now all automatic production line and strictly controls raw material inspection, production procedure and finished product inspection. All products have passed the German TUV IEC, UL(US), JET(Japan), CSA(Canada), CEC(Australia) and CE certificates. By it's high quality and well-deserved reputation, Rosen Solar's solar panel, batteries pumps, and PV systems are delivered into more than 100countries.

Rosen will research and develop more advanced and hi-tech products with global partners by the world energy industry, to light up every corner of the world.

About Our Factory & Business Background

Address: Bldg. B, Jiaqiao International, Zhenxing Road, Shushan District, China (Mainland), Hefei, Anhui, China
Terms of Payment: LC, T/T, D/P, PayPal, Western Union, Small-amount payment, Money Gram
International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAT, FAS, DDP, DAP, CIP, CPT, Others, FCA
Average Lead Time: Peak Season Lead Time: within 15 workdays
Off Season Lead Time: within 15 workdays
Nearest Port: Ningbo Port, Shanghai Port, Shenzhen Port

Our Production Capability & Technical Expertise

Main Products: Solar Panel, Solar System, Battery, Solar Pump, Inverter, Charge Controller, Lithium Battery, PV Mounting System, Solar Street Light, Solar Products

Our Industry Experience & Global Business Record

Export Year: 2008-01-01
Main Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

FAQ

What is the warranty period for the solar panels?: The Rosen Mono 380W solar panels included in this system come with a 25-year warranty.
Which inverter brands are available for this 4KW system?: Optional inverters include Growatt, SolarX, INVT, Solis, and Goodwe, available in single or three-phase.
Can the mounting brackets be customized?: Yes, the aluminum alloy or galvanized steel mounting brackets are customized for flat/pitched roofs or ground installation.
How long is the average lead time for delivery?: The average lead time is within 15 workdays for both peak season and off-season periods.
Is remote monitoring included in the package?: Yes, a WiFi module is included for plug-and-play free online monitoring of electricity production and consumption.
What payment terms are accepted?: Accepted payment terms include LC, T/T, D/P, PayPal, Western Union, Small-amount payment, and Money Gram.
What is the output voltage configuration?: The system supports EU: 220/230/240V or US: 110/120V, with frequency options of 50/60Hz.