Leave Your Message

400W Ultra-Slim Linear Power Supply - 12V/24V for Indoor LED Light Box

Power your innovative Indoor LED Light Box designs with our high-performance 400W Ultra-Slim Linear Power Supply. Available in both 12V and 24V DC output options, this unit delivers substantial energy in a uniquely elongated, thin form factor. Its distinctive linear, ultra-slim shape is specifically engineered for seamless integration into the narrow profiles of modern light boxes or other space-restricted indoor installations.
This makes it the perfect power solution not just for standard backlit displays, but especially for more complex and visually engaging types, such as magic color/RGB chasing light boxes and dynamic motion effect light boxes that require reliable, robust power. Built with high-quality components for dependable indoor performance, this linear power supply provides the consistent energy needed to ensure your light box creations illuminate brightly and effectively.

  • Model Number DX-400W 12V FAN
  • Input voltage 187-262V
  • Output voltage 12V DC
  • Output Power 400W
  • Size 313*53*21 mm
  • Warranty 2 years
  • OEM Customize LOGO, color box, and Carton
  • Protection Over voltage, over current, short protection

Feature

◎ Unique Ultra-Slim Linear Design: Elongated, thin profile specifically engineered for easy integration into narrow LED light boxes and tight indoor spaces.
◎ High 400W Power Capacity: Delivers substantial power suitable for large or bright indoor light box applications.
◎ Dual Voltage Options (12V/24V): Available in both common low-voltage outputs to match diverse LED requirements.
◎ Optimized for Dynamic Light Boxes: Ideal power source for complex magic color  and dynamic motion light box effects.
◎ High-Quality Indoor Performance: Built with reliable components for consistent energy delivery in indoor environments.

specification

Model DX-400W 12V FAN DX-400W 24V FAN
OUTPUT DC voltage 12V 24V
Rated current 33.3A 16.7A
Cuttent range 0-33.3A 0-16.7A
Rated output power 400W 400W
Ripples and noise ≤200mVp-p ≤300mVp-p
Output current range 11.5-12.5V 23-25V
Precision of output voltage regulation ±0.5% ±0.5%
Rate of lenear adjustment ±0.5% ±0.5%
Load adjustment rate ±0.5% ±0.5%
The startup time ≤2s/230VAC
INPUT Keep time 10ms/230VAC
Voltage range 176-264VAC
Frequency range 50Hz
Power factor PF≥0.6/230VAC
Efficiency ≥89% ≥91%
Alternating current 3.4A/230VAC
Surge current 50A/230VAC
Leakage current <5mA/230VAC
PROTECTION Overload 110%-140%: rated 110%-140% of the total power input
protection mode:Auto recovery mode.the system automatically recovers when abnormal load conditions are removed
Short circuit protection mode:Auto recovery mode.the system automatically recovers when abnormal load conditions are removed
Over voltage protection mode:self-recovery mode,automatic recovery when the overvoltage is removed
Over temperature protection mode:self-recovery mode,automatically recover when the temperature drops
ENVIRONMEN working temperature -35~+50°C
working humidity 20-90% RH
storage temperature;humidity -30~+85°C; 10~95% RH
temperature coefficient ±0.1%/°C(0-35°C)
resistance to vibration 10-500Hz, 3G 10min. / 1 cycle,  60 min. each axes
SAFETY&EMC safety norms EN60950 , GB4943.1 -2011
withstand voltage l/P-O/P:1.5KVAC l/P-FG:1.5KVAC O/P-FG:0.5KVAC
insulation impedance l/P-O/P, l/P-FG, 0/P-FG:100M Ohms / 500VDC / 25°C/ 70% RH
EMC --
other protection grade IP20
MTBF ≥30khour 25℃
power supply size L313*W53*H21mm
 power supply weight 385g
NOTE 1.Unless otherwise specified , all specification are measured at an input of 230VAC,rarted negative cut,and ambient temperature of  25°C
2.Ripple and noise measurement method:the measured end is connected in parallel with a 0.1uF+10uF capacitor,the oscilloscope is set to 20MHZ bandwidth,and the probe is tested with cap off and full load at 25°C
3.Accuracy :includes setting error , linear adjustment rate and load adjustment rate .
4. The output power is reduced when the input voltage is less than 200VAC.

OEM Customer design

Model List

DX lighting box series. Our factory offers OEM customization, allowing us to tailor various models and parameters to meet your specific needs. Feel free to contact us for more information and personalized solutions.
Model Power Out Input Voltage Output Voltage Output Current Efficiency IP Size(mm) Package
DX-60W 12V /24V 60W 200-240V AC 12V/24V 5.0A/ 2.5A 89% IP20 148*53*21 85
DX-100W 12V /24V 100W 200-240V AC 12V/24V 8.3A/ 4.1A 89% IP20 172*53*21 85
DX-150W 12V /24V 150W 200-240V AC 12V/24V 12.5A/ 6.25A 89% IP20 234*53*18 78
DX-200W 12V /24V 200W 200-240V AC 12V/24V 16.7A/ 8.33A 89% IP20 313*53*21 60
DX-300W 12V /24V 300W 200-240V AC 12V/24V 25.0A/ 12.5A 85% IP20 313*53*21 60
DX-400W 12V /24V 400W 200-240V AC 12V/24V 33.3A/ 16.7A 85% IP20 313*53*21 60
DX-300W 12V /24V FAN 300W 200-240V AC 12V/24V 25.0A/ 12.5A 88% IP20 313*53*21 60
DX-400W 12V /24V 1FAN 400W 200-240V AC 12V/24V 33.3A/ 16.7A 84% IP20 313*53*21 60
DX-400W 12V /24V 2FAN 400W 200-240V AC 12V/24V 33.3A/ 16.7A 86% IP20 373*53*21 45

application

The distinctive ultra-slim, linear form factor of this 400W Power Supply makes it the premier choice for powering a wide variety of Indoor LED Light Boxes, particularly those with minimal depth or unique shape requirements. Its specialized design excels in applications such as:
Ultra-Thin LED Light Boxes: Seamlessly integrates into extremely shallow light box frames where traditional block-style power supplies won't fit, maintaining a clean aesthetic.
Magic Color / RGB Chasing Light Boxes: Provides the robust 400W power needed to drive the complex controllers and multiple LED segments found in vibrant, color-changing advertising displays.
Dynamic Motion Light Boxes: Reliably energizes light boxes featuring animated effects, scrolling text, or other dynamic elements requiring consistent and substantial power.
Standard Backlit & Edge-Lit Displays: Offers a high-capacity power solution for large or very bright standard indoor light boxes used for advertising, menus, or informational displays.
Linear Architectural Lighting: Its elongated shape can also be advantageous for powering long, continuous runs of indoor LED strips integrated into coves, soffits, or custom linear fixtures.
Available in both 12V and 24V outputs, this power supply caters to the specific voltage requirements of various LED modules and strips commonly used within these innovative indoor lighting and display applications. Choose this linear design when space, form factor, and high power are critical considerations for your indoor light box project.

Leave Your Message