What is the charging time?

The system requires approximately 8 to 10 hours to fully charge the battery.

What safety features does it have?

It includes overcharge and over-discharge protection to ensure safe operation.

What is the lead time for orders?

The average lead time is one month for both peak and off-peak seasons.

20W/18V off-Grid Solar Power System with Battery Backup

Name: 20W/18V off-Grid Solar Power System with Battery Backup
Brand: Qingdao Sunshine New Energy Co., Ltd.
SKU: 893807645

Shandong, ChinaQingdao Sunshine New Energy Co., Ltd.

US$53.00

1-99 Pieces

US$50.00

100+ Pieces

Sample price:US$53.00/piece.Request sample

Product profile

Customization

Available

Warranty

1 Year

Solar Panel

20W/18V Poly

Model NO.

SF-20W

Number of Bulbs

3*3W LED Lamp with 5m Cable

Protection

Overcharge and Over Discharge Protection

Other Functions

Mobile Phone Charge Function.

LED Indicator

to Show Battery Level

Output

12VDC Output*7PCS,5V DC Output*2

Service Life

3-5 Years

Transport Package

Carton

Specification

System Outer Carton: 62*31*31cm

Origin

Qingdao

Production Capacity

50000

Key features

1-Year Warranty Coverage: Includes comprehensive 1-year warranty for all mechanical and electrical components.

Long Battery Life: Features a durable 12V/9Ah lead-acid battery with over 9 hours of light duration.

Energy Saving Design: Eco-friendly solar system with 20W poly solar panel for efficient power generation.

Mobile Phone Charging: Built-in 5V DC output ports allow convenient charging of mobile devices.

Safety Protection: Equipped with overcharge and over-discharge protection for system safety.

Versatile Applications: Ideal for home lighting, radios, recorders, fans, and mobile phones in off-grid areas.

OEM/ODM Services: Customization services available for solar panels and system configurations.

Durable Construction: Constructed with high-quality metal and aluminum materials for long-term use.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceSelf-brandedQuality Assurance

Qingdao Sunshine New Energy Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2001-10-18 CertifiedNearest Port: Qingdao PortAverage Response Time: ≤4.43h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryThe supplier is a Qingdao-based solar-products manufacturer with three production lines, six to ten quality-control staff, and stated export experience of 14 years. It reports ISO9001:2015 and ISO14001:2015 certifications, OEM service for known brands, ODM capability, recent new-product activity, and broad customization options. Export sales represent 90% of total sales, with markets including Africa, Southeast Asia/Middle East, and North America. Quality procedures, complaint handling, inspection instructions, and corrective-action records are documented and followed. However, the supplier lacks raw-material traceability, does not continuously reconcile production quantities, and reports no overseas warehouse, showroom, agent, branch, or SDK. Financial information is present only as reporting years, without sufficient evidence to assess financial credibility.

Supplier typeThe supplier describes itself as a solar-products researcher and manufacturer, with a factory in Qingdao, three production lines, and export-oriented operations. Its stated product focus and manufacturing infrastructure support classification as a solar-products manufacturer and exporter.

CertificationsThe supplier reports holding ISO9001:2015 and ISO14001:2015 certificates. These explicitly demonstrate certified quality-management and environmental-management systems.

R&D capabilityThe supplier reports new products within the past year, provides ODM services, and has three R&D engineers with stated total experience. Its company description also emphasizes researching solar products aligned with environmental-protection trends, although no SDK is available.

Production capacityThe supplier operates three production lines, has six to ten quality-control staff, uses standardized finished-product inspection instructions, and maintains quality, complaint, and corrective-action procedures with records. Nevertheless, it does not continuously reconcile production quantities by batch or production lot, indicating a documented production-control weakness.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM capability, providing strong direct evidence of broad customization support.