What type of junction box is used?

It uses an IP68 rated junction box with 3 diodes.

High-Efficiency 545W Mono Solar Panel with 72 Half-Cutting Cells

Name: High-Efficiency 545W Mono Solar Panel with 72 Half-Cutting Cells
Brand: Ningbo Sincerelink International Trade Co., Ltd.
SKU: 1905554112

Zhejiang, ChinaNingbo Sincerelink International Trade Co., Ltd.

US$0.09-0.12

1 Watt

Product profile

Customization

Available

Warranty

25 Years

Number of Cells

144cells

Model NO.

SL540TU-72H

Application

Industrial

Condition

New

Certification

ISO, CB, CE

Material

Monocrystalline Silicon

1X20'gp

155PCS

1X40'hq

620PCS

Transport Package

Pallet

Specification

2274x1134x35mm

Origin

China

HS Code

8541402000

Production Capacity

700MW/Year

Key features

High Efficiency Mono Cells: 144 half-cut cells with efficiency up to 21.50% for maximum power output.

Dual Warranty Coverage: 12-year product warranty and 25-year limited power warranty included.

Robust Mechanical Design: 3.2mm glass, IP68 junction box, withstands 5400Pa load and 23m/s hail.

Wide Power Range Options: Available in 535W, 540W, 545W, 550W, and 555W models.

Optimized Shipping Capacity: 155PCS per 20'GP and 620PCS per 40'HQ for efficient logistics.

MC4 Compatible Connectors: 900mm/4mm2 cable with MC4 compatible connectors for easy installation.

Company profile

Ningbo Sincerelink International Trade Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Trading CompanyExport Year: 2019-05-05 CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤6.61h CertifiedTerms of Payment: LC, T/T, D/P, etc. CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR

AI-Powered supplier vetting

SummaryNingbo Sincerelink International Trade Co., Ltd. is a China-based trading company established in 2019, operating from Ningbo, Zhejiang. The supplier presents itself as a one-stop sourcing partner for OEM parts and offers metal fabrication, stamping, casting, welding, machining, extrusion, 3D printing, and surface treatment services, supported by four production lines and stated quality-control staffing of 6–10 people. Its export activity is Europe-focused, with 90% of sales reportedly from exports and stated one-month lead times in both peak and off-peak periods. The available information does not provide certifications, after-sales arrangements, named customer cases, or verified innovation outcomes. The stated 70 m² manufacturing area and five total employees create some operational-scale uncertainty, while the information also contains an inconsistency between total employees and reported quality-control staff.

Supplier typeThe supplier is explicitly identified as a trading company and describes itself as a one-stop sourcing partner for OEM parts. Its listed offerings span engineered components, metal parts, logistics equipment, packaging lines, and robotics-related solutions, indicating a broad sourcing and supply role rather than a narrowly defined manufacturer profile.

R&D capabilityThe supplier reports capabilities including 3D printing for plastic and metal, CNC-related processing, automated packaging lines, robots, smart forklifts, and robot delivery solutions. These offerings provide explicit evidence of exposure to advanced processes and intelligent equipment, although no R&D resources, patents, or documented innovation results are supplied.

Production capacityThe supplier reports four production lines, processing capabilities covering bending, turret punching, welding, polishing, stamping, extrusion, 3D printing, and multiple surface treatments, with one-month stated lead times in both peak and off-peak seasons. Nevertheless, the stated 70 m² plant and five total employees indicate a small disclosed operating footprint, and the reported 6–10 quality-control staff is inconsistent with the total employee figure; capacity is therefore supported but should be verified.

Customization capabilityThe supplier explicitly positions itself as an OEM-parts sourcing partner and lists engineered components, metal forming, stamping, casting, CNC machining, welding, extrusion, 3D printing, and varied surface treatments. This combination directly supports customized component sourcing and processing, although tooling, design engineering, and prototype-management details are not provided.