LED Power Supply 12V 400W High-Capacity Constant Voltage Driver
The 12V 400W LED power supply addresses the needs of large-scale commercial lighting installations that require a single high-capacity driver to power extended LED strip runs, expansive panel arrays, or multi-fixture luminaires. Delivering a stable 12-volt DC output at up to 33.3 amps, this driver eliminates the need to parallel multiple smaller units, reducing installation complexity, wiring costs, and points of failure in projects where hundreds of watts of LED load must be served from one distribution point.
Built in a ventilated metal chassis with integrated cooling fan and thermal management, this 400-watt LED driver maintains high efficiency (up to 89%) across the full load range while keeping internal component temperatures within safe operating margins. The unit features active power factor correction, low harmonic distortion, and soft-start circuitry to prevent inrush current issues on larger lighting circuits. It is designed for indoor use in electrical cabinets, ceiling voids, and equipment rooms where space allows for a larger form-factor driver.
BluxLED manufactures and supplies this 12V 400W LED power supply to wholesalers, lighting distributors, and electrical contractors worldwide. We support OEM labelling, custom output configurations, and project-specific packaging for volume orders. All units are CE and RoHS certified, and we can arrange FCC compliance documentation for North American shipments. For project tenders requiring high-wattage 12V drivers, contact our team for competitive bulk value and lead-time confirmation.
Key Features
- High-capacity 12VDC output at 400W (33.3A) for large LED installations
- Ventilated metal enclosure with intelligent temperature-controlled cooling fan
- Active power factor correction (PFC > 0.95) for energy efficiency compliance
- Wide AC input range: 100-265VAC for international project compatibility
- Soft-start function to limit inrush current on large lighting circuits
- Comprehensive protections: short-circuit, over-current, over-voltage, over-temperature
- High efficiency up to 89% at full load reducing energy waste and heat generation
- Parallel output terminals supporting multiple LED strip connections
- CE, RoHS, and FCC certified for global market distribution
Technical Specifications
| Parameter | Specification |
|---|---|
| Output Voltage | 12VDC |
| Output Power | 400W |
| Output Current | 0-33.3A |
| Input Voltage Range | 100-265VAC |
| Input Frequency | 47-63Hz |
| Power Factor | > 0.95 (at full load, 230VAC) |
| Efficiency | Up to 89% |
| Ingress Protection | IP20 (indoor use) |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Protection | Short-circuit / Over-current / Over-voltage / Over-temperature |
| Cooling | Integrated temperature-controlled fan |
| Enclosure Material | Perforated metal (steel/aluminium) |
| Dimensions (L x W x H) | 245 x 130 x 55 mm |
| Weight | Approx. 1,200g |
| Certifications | CE, RoHS, FCC, EN61347 |
| MTBF | > 50,000 hours |
| Warranty | 3 years |
Applications
- Large commercial LED strip lighting installations in retail and hospitality venues
- LED facade lighting and architectural illumination for multi-storey buildings
- Warehouse and distribution centre LED panel and batten lighting arrays
- Stage, event, and entertainment venue LED wall and backdrop systems
- Industrial machine vision and inspection LED lighting arrays
- Large-format LED signage and billboard illumination
- Hospitality and convention centre ambient LED lighting systems
Frequently Asked Questions
What size LED strip installation can a single 12V 400W power supply handle?
A single 12V 400W driver can power up to 400 watts of 12V LED strip lighting. For example, a standard 14.4W/m LED strip could run up to approximately 27 metres from one unit, though we recommend loading to no more than 80% (320W) for continuous operation to maximise driver lifespan.
Does the 400W LED power supply require external ventilation?
The unit has a built-in temperature-controlled cooling fan that activates automatically when internal temperature rises. However, the installation location should allow adequate airflow around the chassis. We recommend at least 50mm clearance on all sides and avoid sealing the driver in a completely airtight enclosure.
Can I connect multiple LED strip segments to this 12V 400W driver?
Yes. The output terminals support parallel connections for multiple LED strip segments. For runs exceeding 5 metres per segment, we recommend connecting each strip segment directly to the driver terminals or using appropriately rated distribution blocks to avoid voltage drop across long runs.
Is this 12V 400W LED driver suitable for outdoor use?
This model has an IP20 rating and is designed for indoor installations. For outdoor applications requiring weatherproofing, consider our IP65 or IP67-rated 12V LED power supplies. If the installation environment is sheltered but not climate-controlled, discuss your specific conditions with our technical team.
What certifications does this 400W LED power supply carry?
This driver carries CE and RoHS certifications as standard, with FCC compliance available. It meets EN61347 safety requirements for LED electronic control gear. For specific market certifications such as SAA for Australia or UL for North America, contact us to discuss certification options for your order volume.
What is the lead time for bulk orders of the 12V 400W power supply?
Standard lead time for orders up to 500 units is 15-20 working days. For OEM orders with custom branding or modified specifications, lead time is typically 25-30 working days. We maintain regular stock of standard models and can often ship smaller quantities within 5-7 working days.
How does the 12V 400W driver compare to using multiple smaller power supplies?
Using a single 400W driver reduces component count, simplifies wiring, and lowers per-watt cost compared to running multiple smaller units. However, it does create a single point of failure. For mission-critical installations, some contractors prefer distributing load across multiple smaller drivers for redundancy. We can advise on the best topology for your project.
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