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30A/40A/50A/60A 12V/24V Auto Smart PWM Solar Charge Controller
US$22.50
20 Pieces
Product profile
Customization
AvailableWarranty
2 yearsCondition
NewModel NO.
PV-3012Certification
CE, RoHSApplication
Collector Controller, Solar System Controller, Charger Controller, Lighting Controller, Solar Working Station, Voltage Controller, Thermal ControllerRated Voltage
24VSystem voltage
12V/24VMax panel input voltage
55VCharging method
PWMMaterial
ABSWork Current
30ALCD screen
YesSize
168*92*41.5mmWork Temperature
-20 ~ +50cPackage
Gift BoxTransport Package
1 PCS/Color BoxSpecification
CETrademark
CONGSINOrigin
China(Mainland)HS Code
8543709990Production Capacity
50000units/MonthKey features
95% Peak Efficiency: PQM technology achieves up to 95% peak conversion efficiency for optimal energy harvesting.
2-Year Standard Warranty: Comprehensive 2-year warranty coverage for all mechanical and electrical defects.
Auto Voltage Detection: Automatically detects and sets battery voltage between 12V and 24V systems.
Multi-Stage Charging: Features 3-stage PWM charging with precise voltage control for battery longevity.
Comprehensive Protection: Includes overload, short circuit, over-voltage, and reverse polarity protection.
Multiple Battery Support: Compatible with sealed, gel, and acid battery types.
Advanced Load Control: Offers manual, twilight, timer, and test mode functions for load management.
Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2001-04-01 CertifiedNearest Port: Guangzhou Port, Shenzhen PortAverage Response Time: ≤18h CertifiedTerms of Payment: LC, T/T, PayPal, etc.
AI-Powered supplier vetting
SummaryGuangzhou Congsin Electronic Technology Co., Ltd is a China-based limited company established in 2021 with 54 employees and a 925 m² manufacturing site in Guangdong. It operates four production lines, has 11–20 quality-control staff, and produces power inverters, solar charge controllers, and related products. The supplier states that it exports to more than 40 countries and that exports represent 90% of total sales. It reports OEM/ODM capability, two years of R&D engineer experience, automatic wave soldering and multifunction testing equipment, and a one-year warranty for power inverters. However, no supplier-management-system certifications are listed. The provided information supports production, export, customization, and after-sales claims, while financial credibility and customer-case strength remain insufficiently evidenced. Reported output figures contain inconsistent entries, so production scale should be verified before reliance.
Supplier typeThe supplier is identified as Guangzhou Congsin Electronic Technology Co., Ltd., a China-based limited company established in 2021. It reports a 925 m² manufacturing plant, four production lines, and business activities spanning manufacturing, electrical and electronic products, and consumer electronics, supporting classification as a manufacturer rather than only a trading intermediary.
CertificationsThe supplier-management-system certification field is explicitly recorded as NIL. No certification evidence is provided in the available information, indicating a documented gap for this field.
After-Sales capabilityThe supplier explicitly describes itself as a reliable power-inverter supplier offering a one-year warranty. This is direct evidence of a defined warranty-based after-sales commitment, although no further service-process or response-time details are provided.
R&D capabilityThe supplier reports an R&D department, professional engineer support, OEM/ODM project capability, automatic wave soldering machines, and multifunction testing machines. However, only two years of total R&D engineer experience is stated, and no patents, proprietary technologies, or product-development results are provided.
Production capacityThe supplier reports four production lines, 11–20 quality-control staff, product-specific output information, and fulfillment within 15 working days in both off-peak and peak seasons. The output data contains inconsistent and unusually large entries, so production capacity is supported in principle but requires verification.
Customization capabilityThe supplier explicitly states that its R&D department supports OEM and ODM projects and that it has professional engineer support. Its stated export experience across more than 40 countries further indicates experience serving varied markets, although specific customization examples are not provided.
Product Q&A
Q:What is the warranty period for this controller?
A:
We provide a standard 2-year warranty covering all mechanical and electrical defects.
Q:Does the controller support both 12V and 24V systems?
A:
Yes, it features auto voltage detection and automatically sets the system voltage to 12V or 24V.
Q:What is the maximum PV input voltage allowed?
A:
The maximum PV input voltage is less than 55Vdc to ensure safe operation.
Q:What charging technology does this controller use?
A:
It uses PQM (Pulse Width Modulation) technology with 3 charge stages for high efficiency.
Q:What types of batteries are compatible with this unit?
A:
It supports sealed, gel, and acid battery types with specific voltage settings for each.
Send Inquiry
*To:
Guangzhou Congsin Electronic Technology Co., Ltd
Guangzhou Congsin Electronic Technology Co., Ltd*Content:
Supplier replies will be sent to your registered email
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