12V / 33.3A Power Supply DC SMPS - LED lights [Rainproof] 400W

12V 33.3A 400W Rainproof DC SMPS Power Supply for LED Lights

The 12V 400W Rainproof DC Switching Power Supply (SMPS) is designed to deliver a stable 12V DC output with a maximum current of 33.3A for high-power LED lighting and industrial applications. Featuring a durable aluminum enclosure with an IP43 rainproof design, this power supply is suitable for indoor and semi-outdoor installations where protection against dust and water splashes is required. It is widely used for LED strip lighting, LED modules, CCTV systems, advertising signboards, and automation equipment.

Key Features

• Rainproof IP43 enclosure
• Stable 12V DC regulated output
• Maximum output current of 33.3A
• 400W maximum output power
• Efficient heat dissipation with aluminum housing
• Built-in cooling fan for thermal management
• Protection against overload, overvoltage, and short circuit
• Screw terminal connections for secure wiring
• Suitable for continuous operation

Specifications

• Model: IP-400-12
• Input Voltage: 220-240V AC, 50/60Hz
• Output Voltage: 12V DC
• Rated Output Current: 33.3A
• Rated Output Power: 400W
• Protection Rating: IP43
• Cooling Method: Built-in Cooling Fan
• Housing Material: Aluminum Alloy
• Mounting Type: Surface Mount
• Operating Temperature: -20°C to +50°C (Typical)

Input & Output Terminals

• Input: Live (L), Neutral (N), Earth (Ground)
• Output: 4 × Positive (+V), 4 × Negative (-V)

Applications

• LED strip lighting
• LED sign boards and advertising displays
• CCTV camera power systems
• Architectural lighting
• Industrial automation equipment
• Access control systems
• 12V DC electronic projects

Frequently Asked Questions (FAQ)

Q: Can this SMPS continuously power a 400W LED load?
A: For maximum reliability and longer service life, it is recommended to operate the power supply at up to 80–90% of its rated capacity rather than at a continuous full 400W load.

Q: Is this power supply suitable for outdoor installation?
A: It features an IP43 rainproof enclosure, making it suitable for protected outdoor or semi-outdoor installations. It should not be submerged or directly exposed to heavy rain.

Q: Can I use this SMPS for CCTV cameras?
A: Yes. It is suitable for powering multiple 12V CCTV cameras, DVR accessories, and surveillance equipment within its current rating.

Q: How many LED strips can this power supply operate?
A: The number depends on the total power consumption of your LED strips. Ensure the combined load does not exceed 33.3A or 400W.

Q: Why are there multiple +V and -V output terminals?
A: Multiple terminals allow easier distribution of power to several devices without requiring external terminal blocks.

Q: Does this power supply include cooling?
A: Yes, it includes a built-in cooling fan and an aluminum enclosure for efficient heat dissipation during operation.

Q: Can this SMPS be used for 24V devices?
A: No. This model provides a regulated 12V DC output and should only be used with compatible 12V equipment.

Q: What should I check before ordering this power supply?
A: Verify that your equipment requires 12V DC, the total load is below 33.3A (400W), and the installation environment is suitable for an IP43 rainproof power supply.

Important Note: This Power Supply Unit does not come with installation instructions, wiring cable, on/off switch, or screws. Professional installation by a qualified electrician is highly recommended.

*Image shown is a representation only.