What is the module efficiency?

Module efficiency ranges from 21.1% to 21.9% depending on the model.

What type of glass is used?

The panel uses 3.2mm tempered low iron glass.

What is the IP rating of the junction box?

The junction box is rated IP68 for dust and water resistance.

New Products Most High Power 550W Mono Solar Panel 144 Cells

Name: New Products Most High Power 550W Mono Solar Panel 144 Cells
Brand: Rosen Solar Energy Co., Ltd.
SKU: 1929813995

Anhui, ChinaRosen Solar Energy Co., Ltd.

US$0.21

1,000-499,999 Watt

US$0.20

500,000-999,999 Watt

US$0.19

1,000,000+ Watt

Sample price:US$0.19/watt.Request sample

Product profile

Customization

Available

Warranty

25 Years

Number of Cells

144cells

Application

Industrial

Condition

New

Certification

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

Material

Monocrystalline Silicon

Weight

27.5kgs

Solar Cell

5bb 6bb 9bb 10bb Mono

Glass

3.2mm Tempered Low Iron

Junction Box

IP68 Rated

Cable

PV Cable 4mm^2, 300/1400mm

Cell Orientation

144cells(6*24)

Connector

Mc4

Frame

Silver/Black Anodized Aluminium Alloy

Tpt Backsheet

White/Black Backsheet

OEM

Acceptable

Transport Package

31PCS/Pallet, Wooden Box

Specification

2256*1134*35mm opt

Trademark

Rosen Solar/OEM/ODM

Origin

China

HS Code

854140

Production Capacity

15000PCS/Week

Key features

High Power Output: Available in 540W to 560W peak power options with 21.1% to 21.9% module efficiency.

25-Year Warranty: Comprehensive 25-year warranty coverage for long-term reliability and peace of mind.

Premium Materials: Constructed with 3.2mm tempered low iron glass and silver/black anodized aluminum alloy frame.

Multiple Cell Options: Supports 5bb, 6bb, 9bb, and 10bb mono solar cell configurations for customization.

IP68 Rated Junction Box: Dust-tight and water-resistant junction box ensures durability in harsh environments.

Wide Certification Range: Certified by EST, ISO, CB, CE, TUV, VDE, IEC61215, IEC617, PID, CEC, and JET.

Fast Delivery: Standard delivery within 5-7 days, with peak season lead time under 15 workdays.

OEM Acceptance: Acceptable OEM services for tailored manufacturing solutions.

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: ≤9.34hTerms 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.