Can I customize the product for my brand?

Yes, OEM and ODM services are available for this inverter.

What is the lead time for orders?

The average lead time is within 15 working days for both peak and off-peak seasons.

High-Efficiency 300W Portable Pure Sine Wave Inverter for 12V/24V

Name: High-Efficiency 300W Portable Pure Sine Wave Inverter for 12V/24V
Brand: Guangzhou Congsin Electronic Technology Co., Ltd
SKU: 2021032985

Guangdong, ChinaGuangzhou Congsin Electronic Technology Co., Ltd

US$28.00

20-99 Pieces

US$26.00

100-199 Pieces

US$25.00

200+ Pieces

Sample price:US$28.00/piece.Request sample

Product profile

Customization

Available

Nature of Source Flow

Passive inverter

Output Power

201 - 300W

Model NO.

CSP303

Grid Type

off-Grid Inverter

Output Type

Single

Circuit Topologies

Full-Bridge Type

Nature of Wave String

Sine Wave Inverter

Type

DC/AC Inverters

Input Voltage

DC 12V/24V/48V

Output Voltage

AC 110V/120V/220V/230V/240V

Frequency

50Hz/60Hz

Color

Blue

USB Ports

1pcs

Transport Package

Carton Box

Specification

140*95*55mm

Trademark

CONGSIN

Origin

Guangzhou China

HS Code

8504409940

Production Capacity

999 Pieces/Months

Key features

Pure Sine Wave Output: Delivers clean power suitable for sensitive electronics like TVs, computers, and medical devices.

Wide Input Voltage Range: Supports DC 12V, 24V, and 48V systems for versatile vehicle and solar applications.

Comprehensive Protection: Features overload, short-circuit, over-temperature, and reverse polarity protection for safety.

High Efficiency Design: Achieves over 90% power efficiency with low no-load current draw of less than 0.3A.

Smart Cooling System: Equipped with an intelligent fan that activates based on internal temperature to prevent overheating.

Low Battery Protection: Automatically shuts down at 10.5V and alarms at 11V to prevent battery deep discharge.

Compact and Portable: Slim design measuring 140x95x55mm with a lightweight net weight of 0.55kg for easy transport.

OEM and ODM Services: Customization services available for branding and specific technical requirements.

Company profile

Guangzhou Congsin Electronic Technology Co., Ltd

Guangdong, China

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: ≤24h 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.