China Wholesale DC-AC Inverter Manufacturers & Exporter

Precision Power Conversion & Industrial Grade Inverters Since 2017

Premium Inverter & Converter Catalog

Explore our high-efficiency, multi-protection power electronics engineered for robust commercial and industrial applications.

Waterproof 12vac to 12vdc 4A Converter

Waterproof 12vac to 12vdc 4A 12v Ac to 12v Dc Converter Voltage Regulator for Printer Router Switchboard Monitoring

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High Efficiency 12v to 56v boost Converter

High Efficiency 12v to 56v 5a Dc to Dc Voltage Regulator 5amp 12vdc Step up 56vdc boost Converter

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CE Approved 10a Isolated Converter

CE Approved 10a 80v 90v 100v 120v to 24v Dc Voltage Regulator 120vdc 100vdc Step Down 24vdc 10amp Dc to Dc Isolated Converter

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Car Radio Audio 25A Step up Down Regulator

Car Radio Audio 25A 12vdc 24vdc Dc Step up Down Regulator 12v 24v 13.8vdc to 13.8v Buck boost Dc Voltage Stabilizer

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Waterproof 24v to 48v Step up Converter

Waterproof Bus Truck Car Voltage Regulator 15A 720W 24vdc to 48vdc boost Module 24v to 48v Step up Dc to Dc Converter

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Adjustable 3000w AC-DC Power Supply

Adjustable 3000w Switch Mode 380vac 220vac 110vac to 300v 10a Variable Battery Charger 0-300vdc 10amp Ac Dc Power Supply

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Electric Scooter Golf Cart Battery Charger

Electric Scooter/Golf Cart/Rickshaw/Bike Battery Charger 48V 60A Lithium-Compatible 58.4V/58.8V Options EU/US/UK Compatible

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DC-DC boost Buck Converter 12v 18v 24v to 24v

High Efficiency 12v 18v 24v to 24vdc 3A Dc Dc boost Buck Converter Truck Voltage Dc24v Step up Down Regulator

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Shenzhen Wemaxpower Technology Co., Ltd.

For over 7 years, Shenzhen Wemaxpower Technology Co., Ltd. has established itself as an innovative force in the research, development, and high-volume manufacture of programmable DC power supplies, high-efficiency DC-DC converters, and heavy-duty industrial DC-AC inverters. Located in China's Silicon Valley, we combine local supply-chain velocity with world-class engineering standards.

Our global mandate as a premier manufacturer and exporter is supported by state-of-the-art production lines, robust quality control systems, and an agile R&D team dedicated to delivering high-performance electrical solutions. We supply to critical markets in Europe, the Americas, and the Asia-Pacific region, tailoring our solutions to fulfill unique compliance and structural parameters.

Enterprise Highlights

  • Comprehensive 4-step Quality Control Protocol
  • High-Density Power Architecture Design Capabilities
  • Robust IP67 Waterproof & Ruggedized Chassis Form Factors
  • Direct-from-Source OEM/ODM Supply Chains
  • Specialized Active Power Factor Correction (PFC) Integration
7+
Years of R&D Excellence
100%
Full Load Aging Tested
50+
Global Export Markets
99.8%
Compliance Quality Rate

Global Industrial Landscape & Conversion Needs

Understanding the macro-economic and engineering demands of modern electrical infrastructures.

The rapid paradigm shift toward green energy grids, electrification of transport systems, and distributed telecommunications nodes has generated a massive global demand for highly efficient DC-AC and DC-DC power conversion technologies. Modern architectures can no longer tolerate high thermal dissipation, low efficiency, or harmonic noise. As global grids become more complex, inverters serve as the vital gateway between localized DC energy sources—such as lithium battery arrays, photovoltaic strings, and fuel cells—and AC grids or localized industrial apparatuses.

Renewable Energy & Microgrid Integration

DC-AC inverters are fundamental to solar PV arrays, wind turbines, and Battery Energy Storage Systems (BESS). Integrating pure sine wave technology ensures minimal total harmonic distortion (THD) when feeding power back into local or utility-scale AC grids.

Telecommunications & Edge Computing Nodes

Modern remote telecom stations operate on 24VDC or 48VDC battery backup systems. High-reliability step-up DC-DC converters and DC-AC inverters convert low voltage batteries into clean AC power to keep server rooms, monitoring hubs, and cell towers operational.

Automotive & Electric Vehicle Subsystems

Heavy-duty transport vehicles, electric rickshaws, and golf carts rely on rugged converters to step up or step down traction battery voltages. Our military-grade waterproof regulators guarantee sustained performance despite vibrations and damp environments.

Technical Architecture & Next-Gen Engineering

At Wemaxpower, our technical roadmap focuses on the transition from conventional silicon-based IGBT switches to Wide-Bandgap (WBG) semiconductors, such as Silicon Carbide (SiC) and Gallium Nitride (GaN). This transition reduces switching losses, allowing higher switching frequencies. The output is a smaller form factor with superior power density and diminished heat rejection requirements.

Our pure sine wave topologies utilize advanced digital signal processors (DSP) to achieve high dynamic response under non-linear loads. Combined with synchronous rectification, our DC-DC and DC-AC converters reach efficiency thresholds of up to 96%.

Architectural Features

  • Pure Sine Wave Output: THD < 3% for sensitive medical and computing hardware.
  • Active Power Factor Correction: Optimizes operational input currents to minimize total load current.
  • Galvanic Isolation: Complete magnetic isolation between input and output ports safeguards components.
  • Smart Thermal Management: Temperature-controlled dual-ball bearing fans optimize noise levels.

Uncompromising Quality Control Protocol

Our factory team will deliver you quality-guaranteed orders through our documented 4-step QA/QC system.

Step 01

Raw Material IQC

Every component batch undergoes Incoming Quality Control. We verify semiconductor properties, capacitor ESR, and magnetic core consistency prior to assembly line deployment.

Step 02

Semi-Finished IPQC

In-Process Quality Control inspects automated surface-mount (SMT) and hand-soldered boards. Automated Optical Inspection (AOI) detects cold joints or misalignment.

Step 03

Finished Product FQC

Assembled converters and inverters run through multi-point functional verification checking output voltage stability, over-current thresholds, and ripple-noise parameters.

Step 04

100% Full Load Aging OQC

Every item undergoes high-temperature burn-in testing under full load conditions. This aging test minimizes infant mortality rates before dispatching to global ports.

Global Compliance and Localization Commitments

Exporting power solutions globally requires rigorous adherence to regional safety and emission regulations. Wemaxpower products are developed to clear standard certifications including CE, FCC, RoHS, and UL-equivalent performance guidelines. Our design processes incorporate electromagnetic compatibility (EMC) shielding, filtering, and isolation, preventing electronic interference with nearby communication or navigation instruments.

Additionally, we supply customizable mounting topologies, standardized terminal connections (such as terminal blocks, ring lugs, or proprietary automotive harnesses), and localized AC output receptacle shapes (US, EU, UK, AU standards). This level of localization guarantees plug-and-play field integration regardless of physical constraints or regional power grids.

Targeted Field Environments

  • Marine Electronics: Moisture-sealed corrosion-resistant coatings.
  • Industrial Machinery: Extreme operating temps from -40°C to +85°C.
  • Railway Systemics: High shock and vibration survivability chassis.
  • Telecom Base Stations: Continuous 24/7/365 operational cycles.

Industrial Power Supplies & Variable Solutions

Explore our active-PFC power converters, adjustable DC bench supplies, and high-wattage battery chargers.

2000W AC to DC 110vdc Power Supply

2000W AC to DC 110vdc Switching Industrial 2KW Active PFC Power Supply 110v

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Waterproof 12VDC to 28VDC Boost Converter

Waterproof Industrial Motor Car Voltage Regulator 3A 12VDC to 28VDC Boost Step-Up DC/DC Converter IP67

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600W DC AC Pure Sine Wave Inverter

Multi-protection LCD Display 12V/24V/48V to 120V 60Hz 600Watts 600W DC AC Pure Sine Wave Converter Power Inverter

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Adjustable AC to DC 1200W Power Supply

110vac 220vac to 12V 100A 1200W AC to DC Switching Mode Adjustable Voltage Current 0-12vdc 100amp Variable DC Power Supply

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3000W Variable AC to DC Power Supply

3000W Variable AC to DC Adjustable 380VAC 110VAC 220VAC to 100V 30A Single Industry Use Switching Mode DC Power Supply

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Waterproof Buck Converter 24v to 5v 40a

Waterproof Car Bus Truck Voltage Step Down Regulator 24v to 5vdc 40a Dc Dc Buck Converter 12v to 5v

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Wemaxpower 12v to 220v Pure Sine Wave Inverter 3000W

Wemaxpower Dc to Ac 12v to 220V 230v 240V Pure Sine Wave 12vdc to 220vac 3000 Watt Inverter

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WEMAXPOWER S-2000P-48 Power Supply

WEMAXPOWER S-2000P-48 Good Quality AC to DC 100-240VAC to 48V 2000W Switching Industrial 2KW 48VDC Active PFC Power Supply

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Technical Q&A / FAQ

In-depth responses to fundamental power conversion engineering inquiries.

Why is a Pure Sine Wave Inverter preferred over a Modified Sine Wave model?

Pure sine wave inverters replicate utility-grade grid electricity. They output smooth voltage changes with extremely low harmonic distortion (THD < 3%). This is necessary for reactive, inductive, and sensitive loads like compressors, electric motors, power tools, and high-fidelity sound systems. In contrast, modified sine wave inverters produce stepped waveforms that generate electric noise, induce overheating in motors, and can cause component failure.

What are the advantages of Active PFC (Power Factor Correction) in high-power converters?

Active PFC actively corrects the current waveform drawn by the power supply to ensure it is in phase with the AC grid line voltage. This yields a power factor closer to 1.0 (typically > 0.98). This design maximizes operational efficiency, significantly reduces harmonic currents, stabilizes utility grid loads, and allows system engineers to specify smaller wires and fuses for installation.

How does Wemaxpower guarantee high reliability in outdoor or marine environments?

Our outdoor-rated and vehicular power converters use IP67-rated waterproof enclosures. These designs features cast aluminum chassis and complete silicone potting internally to isolate the printed circuit board assembly (PCBA) from water ingress, particulate contamination, and high mechanical shock.

What are the key steps in your factory's aging and quality testing process?

Our 4-step quality assurance program ensures that every shipped device undergoes full functional testing under representative operational limits. Crucially, the 100% full-load aging test subjects finished products to thermal stress cycles in designated chambers. This test safely identifies and flags weak components before packaging, lowering field failure rates.

How can I custom-configure input/output voltage configurations for specific industrial fleets?

We provide OEM/ODM customization services. We tailor specific conversion ratios (such as stepping up custom automotive 12V inputs to 56V for PoE networks, or stepping down 24V inputs to 13.8V for telecom systems). Contact our engineering support desk with your specific electrical profiles and mechanical parameters.

What safety mechanisms are built into your high-wattage power supplies?

Our devices include comprehensive hardware-level protection circuitry, including: Over-Voltage Protection (OVP), Under-Voltage Lockout (UVLO), Over-Current Protection (OCP), Short-Circuit Protection (with auto-recovery or latch-off options), and Over-Temperature Protection (OTP) using integrated thermal sensors to prevent thermal runaway.