Solar Panel

Solar Panel Manufacturer for Wholesale and OEM Projects

Ningbo Xufeng manufactures solar panels for global distributors, equipment manufacturers, system integrators, and OEM buyers. Our range includes monocrystalline, polycrystalline, flexible, bifacial, small, and customized solar panels for off-grid systems, outdoor equipment, and integrated solar products.

With manufacturing experience since 2003, we supply panels configured for different power, voltage, current, dimensions, cell types, and connection requirements, supported by cell sorting, laser cutting, automatic welding, lamination, EL testing, power testing, and final inspection.

Small Solar Power System

The 60W Monocrystalline Small Solar Power System is a compact off-grid solution based on a 60W/18V monocrystalline module. It supports low-power loads such as outdoor lighting, surveillance,...

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Solar Panel Options

The 24V Monocrystalline Solar Panel is a photovoltaic module for 24V battery charging and off-grid power systems. It is available in different power ratings and can be configured with mounting...

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Solar Panel Roads

The 160W Monocrystalline Solar Panel is a photovoltaic module for small off-grid systems, battery charging and standalone equipment. It is available for wholesale and OEM projects, with electrical...

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180 Watt Solar Panel

This monocrystalline solar panel is designed for small off-grid and distributed solar systems requiring battery-based power generation. Its monocrystalline silicon cell configuration supports...

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190 Watt Solar Panel

The Polycrystalline Solar Panel is a compact photovoltaic module for small off-grid and distributed power systems. It is supplied for battery charging, lighting, monitoring equipment, and other...

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110w Solar Panel

Monocrystalline Solar Panel for Outdoor Power Systems is a compact photovoltaic module for small off-grid and equipment-integrated power systems. It uses monocrystalline silicon cells with...

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75 Watt Solar Panel

The 75 Watt Monocrystalline Solar Panel is a compact PV module for small off-grid power systems, monitoring equipment, communication devices, RVs and marine applications. With a 19.08V operating...

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Solar Panel Types

Solar Panel Type	Key Details
Monocrystalline Solar Panels	Use cells made from a single silicon crystal. Main part of Xufeng's small and medium-sized range, with 20W, 30W, 60W, 75W, 110W, 160W and 180W configurations.
Polycrystalline Solar Panels	Use cells made from multiple silicon crystal structures. Xufeng's listed range includes 5W and 10W low-power models.
Thin-Film Solar Panels	Use a thin photovoltaic material layer instead of conventional crystalline silicon cells. Considered for applications where lower weight, flexible construction or specific installation conditions are required.
Small & Medium-Sized Solar Panels	Xufeng focuses on small and medium-sized PV modules with different power ratings, voltage configurations and physical dimensions for equipment-level, battery-based and distributed solar projects.

How to Choose the Right Solar Panel

Match Rated Power to the System

Start with the required power output rather than selecting a panel only by physical size. Xufeng's range covers low-power models through 180W configurations, allowing the module output to be matched to the system requirement.

Check Working Voltage and Current

Compare the panel's Vmp and Imp with the input requirements of the charge controller, battery system or other connected equipment. For example, several 18V-class models use Vmp values around 17.28–18V.

Check Module Dimensions

Physical dimensions matter when the panel must fit an existing roof, bracket, enclosure or equipment surface. Confirm the finished module size together with the mounting arrangement before placing an order.

Confirm the Required Cell Type

Choose monocrystalline or polycrystalline according to the project specification and target model. Cell type, power output and module dimensions should be considered together rather than treated as separate purchasing criteria.

Solar Panel Applications

Off-Grid Power Systems
Small solar panels can be used as the PV source in battery-based off-grid systems, with the panel voltage and current matched to the controller and battery configuration.

Outdoor Equipment
Compact PV modules can supply power to outdoor equipment where a dedicated solar source is required, subject to the equipment's electrical input and available installation area.

Battery Charging
Solar panels can be integrated into battery charging systems through a suitable charge controller. The panel's operating voltage and current need to be checked against the controller specification.

Solar-Powered Equipment
Small and medium-sized modules can be integrated into equipment that requires a dedicated PV power source, including customized products where the module dimensions and electrical configuration need to match the equipment structure.

Solar Panel Components & Materials

01/

Silicon Solar Cells
Silicon cells generate electricity through the photovoltaic effect. Monocrystalline or polycrystalline cells are selected according to the panel model and required electrical configuration.

02/

Aluminum Alloy Frame
The aluminum alloy frame supports the laminated module structure and provides the external mounting edge. Silver or black options are available on applicable models.

03/

Tempered Glass
Tempered glass forms the front cover of conventional modules, allowing sunlight to reach the cells while protecting the internal cell structure.

04/

EVA Encapsulant & Solar Backsheet
EVA encapsulant surrounds the cell assembly during lamination, while the backsheet forms the rear protective layer and helps isolate the cells from external exposure.

05/

Junction Box & Cables
The junction box provides the rear electrical connection, while cables connect the module to the external controller or power system.

06/

Busbars & Interconnection Wires
Busbars and interconnection wires connect individual cells into electrical strings and carry current through the module circuit.

Solar Panel Customization Options for Different Projects

Customization Item	Available Options / Details
Power Output	Different rated power configurations; final output confirmed according to project requirements
Operating Voltage	Voltage configuration matched to the target system
Module Dimensions	Customized length, width and overall module format for equipment integration or space-limited installations
Junction Box	Junction box specification can be selected according to the module and connection requirements; IP65/IP67 options are available on applicable models
Cable Length	Cable length can be specified according to the installation and connection distance
Connector	Connector type can be specified according to the external system connection
Cable Outlet	Cable outlet position/configuration can be discussed according to the installation structure
Frame	Aluminum alloy frame configuration; silver or black frame options are available on applicable models
OEM Logo	Customer logo can be applied according to the OEM order requirements
Nameplate	Customer-specified nameplate information can be arranged for OEM orders
Manual	Customer-specific product manuals can be supplied according to the confirmed product configuration
Labeling	Product labels and identification information can be customized according to order requirements
Outer Box	OEM outer-box specifications, markings and packaging information can be confirmed for bulk orders
Packaging	Packaging configuration can be discussed according to product size, quantity and shipping requirements

Maintenance & Cleaning

Clean the Front Surface

Remove dust, dirt and other deposits from the glass surface when they accumulate. Cleaning frequency depends on the installation environment and the amount of surface contamination.

Check for Physical Damage

Inspect the glass, frame, junction box and visible cables for cracks, deformation or other damage during routine maintenance.

Check Electrical Connections

Inspect the junction box, cables and external connections for looseness or visible damage before troubleshooting abnormal system output.

Keep the Module Surface Unobstructed

Avoid objects, equipment or vegetation covering the active panel surface. Partial shading can reduce the available solar input to the module.

Manufacturing Process

Cell Cutting
For applicable module designs, cells are divided using laser cutting before assembly. Cut cells are checked before entering the subsequent production stage.

Cell Welding and Layout
Cells are welded into strings and arranged on the module glass according to the specified electrical layout. The cell arrangement determines the internal connection structure of the panel.

EL Testing and Lamination
EL inspection is performed before lamination to identify defects such as cell cracks and inactive areas. The inspected assembly is then laminated with the specified encapsulation structure.

Frame and Junction Box Assembly
After lamination, the module is trimmed and fitted with the aluminum frame and junction box. Appearance and assembly condition are checked during this stage.

Final Testing and Packing
Finished modules undergo electrical and insulation-related testing before packing. Cardboard edge protection, cartons and external film are used for the supplied packing configuration.

FAQ

Q: What is the MOQ for solar panel orders?

A: MOQ is flexible and can be confirmed according to the selected model, order quantity and OEM requirements.

Q: What is the typical lead time for bulk orders?

A: The standard lead time is around 15–25 days. The actual schedule is confirmed based on model, quantity and order requirements.

Q: What payment terms are available?

A: Payment terms can be confirmed with the quotation according to the order value, production arrangement and cooperation terms.

Q: Can samples be arranged before a bulk order?

A: Samples can be discussed before mass production to confirm the selected model, specifications and physical configuration.

Q: What technical documents can be provided?

A: Standard spec sheets, flash test reports, and electrical parameter curves for selected models can be supplied, with customized documentation confirmed prior to order placement.

Q: Can third-party inspection be arranged for bulk orders?

A: Third-party inspections by agencies like SGS or TÜV can be arranged prior to shipment, with the testing scope and on-site inspection timing coordinated during order confirmation.

As one of the most professional solar panel suppliers in China, our products have good reputation in the market. Please rest assured to buy bulk premium solar panel in stock here from our factory. For price consultation, contact us.

Solar Panel

Solar Panel Manufacturer for Wholesale and OEM Projects

Small Solar Power System

Solar Panel Options

Solar Panel Roads

180 Watt Solar Panel

190 Watt Solar Panel

110w Solar Panel

75 Watt Solar Panel

Solar Panel Types

How to Choose the Right Solar Panel

Solar Panel Components & Materials

Solar Panel Customization Options for Different Projects

Maintenance & Cleaning

FAQ