What certifications does the solar controller have?

The product is certified with ISO and CE standards, ensuring quality and safety compliance.

What are the main functions of a solar controller?

Main functions include charging management (preventing overcharge), discharge protection (preventing over-discharge), load control, and system monitoring of voltage, current, and capacity.

Premium Junengjiu Smart Solar Energy Controller for Efficient Management

Name: Premium Junengjiu Smart Solar Energy Controller for Efficient Management
Brand: Zhongshan Juneng Jiu Technology Co.,Ltd
SKU: 1972436291

Guangdong, ChinaZhongshan Juneng Jiu Technology Co.,Ltd

US$5.00-10.00

200 Pieces

Product profile

Customization

Available

After-sales Service

1 Year

Warranty

1 Year

Model NO.

Condition

New

Certification

ISO, CE

Application

Solar System Controller

Rated Voltage

12V/24V

Transport Package

Box

Specification

18.5*11.7*5cm

Trademark

Junengjiu

Origin

Zhongshan, China

Production Capacity

50000

Key features

MPPT High Efficiency: Dynamically adjusts operating point to maximize solar panel output power, ideal for high-power systems.

Multi-Battery Support: Compatible with Lead-acid, Lithium (LiFePO4, Ternary), and Gel batteries for versatile applications.

Comprehensive Protection: Features overload protection, overcharge prevention, and over-discharge protection to ensure system safety.

Dual Voltage Input: Supports 12V/24V rated voltage systems, suitable for various solar energy configurations.

1-Year Warranty: Provides a 1-year warranty coverage for the new condition product with reliable after-sales service.

CE & ISO Certified: Product holds CE and ISO certifications, ensuring quality and compliance with international standards.

Customization Available: ODM service available with customization options from designs and samples for specific needs.

Smart Load Control: Manages power supply to loads like lights and devices, preventing battery over-discharge at night.

Company profile

Product CertificationQuality AssuranceExhibition ExperienceFast Delivery

Zhongshan Juneng Jiu Technology Co.,Ltd

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 1 Year CertifiedNearest Port: Zhongshan PortAverage Response Time: ≤2.43h

AI-Powered supplier vetting

SummaryThe supplier is identified as a combined company and a trade company located in Zhongshan, with associated companies in manufacturing. It reports CE and RoHS certifications, customization from designs and samples, ODM services, and new product development during the past year. Production resources include three production lines and several listed machines, but the supplier does not continuously reconcile production quantities for each batch. Service procedures exist for supplier assessment, corrective actions, and complaint handling, yet no written records were provided. Overseas service infrastructure is limited: no overseas warehouse, showroom, agents, or branches, and no overseas service countries were reported. Financial records are referenced for 2022–2024, but no financial performance details are provided. No available SDK, no factory environmental impact assessment report, and no OEM service for popular brands were reported.

CertificationsThe supplier reports CE and RoHS certifications. These are explicit product or compliance certifications and provide positive evidence for this field.

After-Sales capabilityThe supplier has procedures for complaint handling, corrective and preventive actions, and service-capability assessment, but no written records are available. It has no overseas warehouse, showroom, agents, or branches, and reports service availability in zero overseas countries, limiting demonstrated after-sales coverage.

R&D capabilityThe supplier reports new products during the past year and provides ODM services, demonstrating some product-development capability. However, it explicitly reports no available SDK, so the evidence does not support a fully strong innovation capability across the requested scope.

Production capacityThe supplier lists multiple production-related facilities or equipment and reports three production lines. However, it does not continuously reconcile quantities for each batch or bulk production, which is an explicit production-control deficiency.

Customization capabilityThe supplier explicitly supports customization from designs and samples and provides ODM services. These capabilities directly demonstrate design-based and sample-based customization.

Product Q&A

Q:What is the difference between PWM and MPPT controllers?

PWM reduces panel voltage to battery voltage with lower efficiency, suitable for small systems. MPPT dynamically adjusts the operating point to maximize output power, offering higher efficiency for high-power or low-temperature systems.

Q:What types of batteries are compatible with this controller?

Most solar controllers support multiple battery types, including Lead-acid (sealed/open), Lithium (LiFePO4, Ternary), and Gel batteries. Please confirm support for your specific battery type.

Q:Does the controller have overload protection?

Yes, most solar controllers have overload protection. When load current exceeds the rated value, the controller automatically cuts off output to protect the system.

Q:How does the controller work at night?

At night, the controller stops charging and manages battery discharge to loads according to settings, preventing the battery from being over-discharged.

Q:What is the warranty period for this product?

We provide a 1-year warranty for this new condition product, accompanied by reliable after-sales service.