Can this inverter be used for medical equipment?

Yes, it is suitable for in-car or on-boat devices, including medical ambulances, as well as office and household appliances.

What is the peak load power rate?

The peak load power rate is 300W, matching the continuous power output.

Is OEM service available?

Yes, we offer OEM and ODM services for custom branding and specifications.

300Watt DC to AC 220V Solar System Power Modified Sine Wave Inverter

Name: 300Watt DC to AC 220V Solar System Power Modified Sine Wave Inverter
Brand: Guangzhou Congsin Electronic Technology Co., Ltd
SKU: 1971922405

Guangdong, ChinaGuangzhou Congsin Electronic Technology Co., Ltd

US$13.88

10-50 Pieces

US$12.33

51-99 Pieces

US$11.79

100+ Pieces

Product profile

Customization

Available

Warranty

1 year

Type

Car Power Inverter

Model NO.

DS300

Certification

CE, RoHS

Brand Name

Congsin

Output Power

300W

Output Type

Single

Output Voltage

DC12V DC24V

Weight

0.76KG

Certificate

CE EMC LVD

Multi Protection

Yes

Transport Package

1 Unit/Blister

Specification

126*116*56MM

Trademark

modified sine wave inverter

Origin

Guangzhou

HS Code

8504403090

Production Capacity

5000pieces/Month

Key features

100% Full Power Output: Delivers true 300W continuous power with THD<3% for stable performance.

Comprehensive Protection: Includes low voltage, overload, over voltage, thermal, and short circuit protection.

Soft-Start Technology: Gradual voltage ramp-up eliminates cold start failures and momentary shutdowns.

Durable Aluminum Case: Anodized aluminum housing ensures durability and maximum heat dissipation.

Wide Input Voltage Range: Supports DC12V and DC24V input for versatile vehicle and solar system use.

High Efficiency Cooling: Built-in high-speed cooling fan maintains optimal operating temperature.

Certified Quality: CE, RoHS, EMC, LVD, and SGS approved for safety and reliability.

One Year Warranty: Free repair for manufacturing defects within one year of purchase.

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.

Product Q&A

Q:What is the warranty period?

We provide a one-year warranty. The factory is responsible for free repair for any raw materials or production quality problems within one year from the date of purchase.

Q:What is the input voltage range?

The inverter supports a DC input voltage range of 12V and 24V.

Q:Does it have protection features?

Yes, it includes low voltage alarm/shutdown, overload protection, over voltage shutdown, over thermal protection, and short circuit protection.

Q:What is the total harmonic distortion (THD)?

The THD is less than 3%, ensuring clean power output for sensitive electronics.

Q:What certifications does this inverter have?

The product is certified with CE, RoHS, EMC, LVD, SGS, and GMC, and has an IP30 rating.