Gaqqee 1500W DC-DC Buck Power Supply Module | LED Driver
Gaqqee 1500W DC-DC Buck Power Supply Module | LED Driver
Gaqqee 1500W Synchronous Rectifier DC-DC Step-Down Power Supply Module
The Gaqqee 1500W Buck Power Supply Module is a high-performance, adjustable DC-DC step-down converter engineered for industrial-grade applications. Whether you're driving high-power LED lighting systems or managing battery charging, this module delivers stable, efficient, and adjustable constant voltage or constant current output with up to 95% typical efficiency. CE and RoHS certified, it's built for reliability and continuous operation.
Made in Mainland China.
Key Features
- High-Power Output: Up to 1500W peak / 1200W rated — ideal for demanding LED driver and battery charging applications.
- Synchronous Rectification Technology: Maximises energy efficiency (90%–97%), significantly reducing heat generation and energy consumption.
- Three Model Variants: Choose from Model A, B, or C to match your exact input/output voltage requirements.
- Fully Adjustable: Independently adjustable output voltage and current to flexibly meet varying load demands.
- Digital Display: Built-in output voltage and current digital readout for precise real-time monitoring.
- Constant Voltage Indicator: Dedicated CV indicator confirms stable output status at a glance.
- Industrial-Grade Durability: Rated for 0–65°C operating temperature, suitable for continuous industrial use.
- CE & RoHS Certified: Compliant with EU Low Voltage Directive and environmental standards.
Model Specifications At a Glance
| Specification | Model A | Model B | Model C |
|---|---|---|---|
| Input Voltage Range | 15–90 VDC | 15–140 VDC | 15–140 VDC |
| Output Voltage Range | 2.5–72 VDC | 2.5–85 VDC | 2.5–112 VDC |
| Max Output Current | 50A | 35A | 35A |
| Rated Output Current | 40A | 30A | 30A |
Full Technical Specifications
- Peak Output Power: 1500W
- Rated Power: 1200W
- Operating Frequency: 70 kHz
- Typical Efficiency: 95% (range: 90%–97%)
- Minimum Input-Output Voltage Drop: IN × 0.2
- Operating Temperature: 0–65°C
- Certifications: CE, RoHS
- Output Voltage Indicator: Yes (constant voltage indicator included)
- Digital Display: Yes (output voltage & current)
Important Safety Precautions
- This module is a step-down (buck) converter only — it reduces voltage; it cannot boost voltage.
- Do not reverse the positive and negative input terminals — there is no reverse polarity protection.
- When connecting to a motor or battery charger, series-connect a Schottky diode rated ≥50A / 100V at the positive output terminal to prevent reverse current flow.
- Avoid prolonged operation at maximum power or current. Maintain at least 20% reserve capacity during extended use.
- Input power source capacity must exceed 1.5× the output power.
- Do not parallel multiple units to increase total power — this is not supported.
What's in the Box
- Step-Down Buck Power Supply Module ×1
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Frequently Asked Questions
Q: What is a DC-DC buck power supply module and how does it work?
A: A DC-DC buck (step-down) power supply module takes a higher DC input voltage and converts it to a lower, adjustable DC output voltage. The Gaqqee 1500W module uses synchronous rectification technology operating at 70 kHz to do this efficiently — achieving up to 97% efficiency — making it ideal for LED driver applications and battery charging where stable, adjustable output is essential.
Q: Is this buck module suitable for charging lithium or lead-acid batteries?
A: Yes. This module supports constant-current and constant-voltage output modes, making it well-suited for charging various battery types. However, when connecting to a battery, you must series-connect a Schottky diode rated at 50A or higher (100V) at the positive output terminal to prevent reverse current from flowing back into the module.
Q: Which model variant should I choose — A, B, or C?
A: Choose based on your input voltage source and desired output range. Model A supports 15–90 VDC input and up to 72 VDC output (max 50A). Models B and C handle up to 140 VDC input, with Model B outputting up to 85 VDC and Model C up to 112 VDC (both rated at 30A). Select the model whose output voltage range best matches your load requirements.
Q: Can I connect two modules in parallel to get more power?
A: No. Parallel connection of multiple units is not supported and is not recommended. Doing so may cause instability or damage to the modules. For higher power needs, please select a single module with sufficient rated capacity for your application.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.