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Durable 400W 12V Semi-Potted Rainproof Supply - Full Protection for Bridges & Facades

Power your high-end outdoor lighting projects like bridge and building facade illumination with our Durable 400W 12V Semi-Potted Rainproof Supply. This unit offers full protection through its innovative semi-potted design, where the PCB is resin-encapsulated to expertly guard against rain, humidity, salt spray, and insects. The full aluminum case ensures excellent heat dissipation, contributing to its renowned high stability, efficiency, and quality, all backed by a 2-year warranty.

Designed for safety and convenience, it features a flip cover for easy wiring, a loading indicator (green/normal, red/overload), and secure AC/DC connections to prevent shock. Comprehensive built-in protections against under-voltage, short-circuits, and overloads ensure reliable operation. Choose this robust, semi-potted solution for unmatched durability and performance in critical outdoor environments.

  • Model Number HS-400W 12V A
  • Input voltage 200-240V
  • Output voltage 12V DC
  • Output Power 400W
  • Size 205*115*46mm
  • Warranty 2 years
  • OEM Customize LOGO, color box, and Carton
  • Protection Over voltage, over current, short protection

Feature

◎ Semi-Potted Enhanced Protection: Resin-encapsulated PCB offers superior defense against rain, humidity, salt spray, and insects
 Durable Aluminum Case: Full aluminum housing ensures excellent heat dissipation and robust physical protection
◎ User-Friendly Design: Features a flip cover for convenient wiring and a clear loading indicator (green/red)
◎ Comprehensive Safety Protections: Includes under-voltage, short-circuit, and overload protection for reliable operation
◎ High-End Project Grade: Designed for demanding applications like bridge and facade lighting, offering high stability, efficiency, and a 2-year warranty.

specification

Model  HS-400W 12V A HS-400W 24V A 
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 ≥91% ≥93%
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 IP62
MTBF ≥30khour 25℃
power supply size L205*W115*H46mm
 power supply weight 625g
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.

Caution

● The product MUST be installed vertically and the wiring terminals downwards.
● For the heat dissipation, distance of 10cm from 4 sides (up/down/right/left) and 5cm from the ventilation hole side should be kept.
Installation-instruction-1

OEM Customer design

Model List

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 
HS-100W 12V 100W 200-240V AC 12V 8.3A 93% IP43 155*92*48 80
HS-200W 12V 200W 200-240V AC 12V 16.7A 92% IP43 175*92*48 60
HS-300W 12V 300W 200-240V AC 12V 25.0A 92% IP43 175*92*48 50
HS-400W 12V A 400W 200-240V AC 12V 33.3A 80% IP43 193*110*46 30
HS-400W 12V B 400W 200-240V AC 12V 33.3A 80% IP43 205*115*46 30
HS-500W 12V 500W 200-240V AC 12V 41.7A 90% IP43 205*115*46 30
HS-600W 12V 600W 200-240V AC 12V 50.0A 90% IP43 212*118*52 30
HS-700W 12V 700W 200-240V AC 12V 58.3A 90% IP43 212*118*52 30
HS-1000W 12V 1000W 200-240V AC 12V 83.3A 90% IP43 212*118*52 30
HS-400W 24V  400W 200-240V AC 24V 16.7A 92% IP43 205*115*46 48
HS-700W 24V  700W 200-240V AC 24V 29.1A 90% IP43 212*118*52 30
HS-200W 5V 200W 200-240V AC 5V 40.0A 92% IP43 193*110*46 30
HS-300W 5V 300W 200-240V AC 5V 60.0A 92% IP43 193*110*46 30
HS-350W 5V 350W 200-240V AC 5V 70.0A 90% IP43 205*115*46 30
HS-400W 5V 400W 200-240V AC 5V 80.0A 90% IP43 205*115*46 30
HS-500W 5V 500W 200-240V AC 5V 100.0A 89% IP43 212*118*52 30

application

This Durable 400W Semi-Potted Rainproof Supply is specifically engineered for high-end outdoor lighting projects where exceptional protection and long-term reliability are paramount. Its unique semi-potted design and robust construction make it the ideal power solution for:


Bridge LED Illumination Projects: Perfectly suited to power LED fixtures on bridges, where exposure to humidity, rain, potential salt spray, and vibrations demands the enhanced protection offered by resin potting and a durable aluminum casing.


Building Facade Lighting: Ideal for large-scale architectural illumination of building exteriors, ensuring consistent power delivery and longevity for LED systems installed in exposed or difficult-to-access locations.


Coastal & Harsh Environment Installations: Its resistance to humidity, salt spray, and insects makes it particularly suitable for projects near coastlines or in industrial areas with challenging atmospheric conditions.


Critical Infrastructure Lighting: Can be used for illuminating tunnels, public monuments, or other critical infrastructure where consistent operation and minimal maintenance are essential.


Demanding Outdoor Signage: Powering large, high-value outdoor LED signs or displays that require superior protection against environmental factors to ensure continuous operation and protect the investment.


The combination of its semi-potted protection, user-friendly features like the flip cover and load indicator, and comprehensive safety circuits makes it the preferred choice for contractors and engineers undertaking significant outdoor projects that require a power supply with high stability, efficiency, and unwavering quality

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