# HiSmart US-400-24 Power Supply 24V 16.5A 400W

**URL:** https://aio.lv/en/product--hismart-us-400-24--12486099
**Data updated:** 2026-05-27 17:50 (EEST)
**Category:** Power Supplies (PSU)
**Manufacturer:** HiSmart
**Manufacturer code:** US-400-24
**EAN:** 9990000700851
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The HiSmart US-400-24 is a reliable 400W power supply unit designed to provide a stable 24V DC output with a maximum current of 16.5A. This high-efficiency power converter is suitable for various industrial, automation, and electronic applications requiring consistent voltage regulation. Its robust design ensures safe and efficient power delivery for demanding electrical systems.

## Long description

The HiSmart US-400-24 is a slim-type switching power supply designed to provide a stable 24V DC output with a maximum current of 16.5A and a total power capacity of 396W. Engineered for efficiency and reliability, this unit operates in pulse mode to deliver consistent power for various electronic and lighting systems. Its compact aluminum housing and lightweight design facilitate easy integration into space-constrained environments, while the passive cooling system ensures quiet operation without the need for internal fans.
Advantages
This power supply unit offers high operational efficiency of up to 92%, which helps minimize energy waste and heat generation during continuous use. The robust aluminum shell provides excellent durability and effective heat dissipation through free air convection. With built-in protection mechanisms against short circuits and overloads, the device ensures the safety of connected equipment. Its slim profile makes it particularly suitable for installations where space is limited, such as behind signage or within narrow control cabinets.
Suitable for
LED lighting systems
LED luminous subtitles
LED mobile signage
Industrial automation equipment
Electronic control systems
When it may not be suitable
This power supply is designed for indoor use and is not waterproof, so it should not be installed in environments exposed to rain, high moisture, or direct water contact. It is also not intended for applications requiring variable voltage output or high-frequency switching environments outside of its specified input range.
Key specifications
Input voltage: 200-240V AC
Output voltage: 24V DC
Maximum current: 16.5A
Rated power: 396W
Efficiency: 92%
Operating temperature: -20°C to +50°C
Dimensions: 220 x 60 x 29 mm
Weight: 0.5 kg
How to use
Installation should be performed by a qualified professional. Connect the AC input wires to the corresponding terminals, ensuring the input voltage matches the 200-240V range. Connect the DC output wires to your LED or electronic device, observing correct polarity. Ensure that the total load does not exceed the rated 396W capacity. The unit relies on free air convection for cooling, so it must be mounted in a location with adequate airflow and sufficient clearance around the housing to prevent overheating.
What to consider before purchase
Verify that your total load does not exceed 396W.
Ensure the installation environment is dry and well-ventilated.
Check that the input voltage matches your local power grid.
Confirm that the physical dimensions fit your intended mounting space.
Usage recommendations
For optimal longevity and performance, it is recommended to operate the power supply at approximately 80% of its maximum rated capacity. Ensure that the ventilation holes are not obstructed by dust or debris to maintain efficient heat dissipation.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All HiSmart products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized HiSmart service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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