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Mean Well HLG-320H-54 Power Supply 320W 54V 5.95A

4.9 (21 reviews)
premium quality7 years warrantyaluminium casinghigh efficiency
SKU HLG-320H-54
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HLG-320H-54
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Overview

HLG-320H-54 is the 54V output model of this series: rated current 5.95A, rated power 321.3W, typical efficiency 95%. Type Blank: Io and Vo fixed (IP67).

HLG-320H series is a 320W AC/DC LED driver featuring the dual mode constant voltage and constant current output. HLG-320H operates from 90～305VAC and offers models with different rated voltage ranging between 12V and 54V. Thanks to the high efficiency up to 94%, with the fanless design, the entire series is able to operate for -40℃ ~ +90℃ case temperature under free air convection. The design of metal housing and IP67 ingress protection level allows this series to fit both indoor and outdoor applications.

Features

  • Constant Voltage + Constant Current mode output
  • Metal housing with class I design
  • Built-in active PFC function
  • IP67 rating for indoor or outdoor installations
  • Typical lifettime > 62000 hours
  • 7 years warranty

Specifications

HLG-320H-54Specifications from the official datasheet (2026-02-04 edition)

OUTPUT

DC VOLTAGE
54V
CONSTANT CURRENT REGIONNote.4
27 ~ 54V
RATED CURRENT
5.95A
RATED POWER
321.3W
RIPPLE & NOISE (max.)Note.2
350mVp-p
VOLTAGE TOLERANCENote.3
±1.0%
LINE REGULATION
±0.5%
LOAD REGULATION
±0.5%
SETUP, RISE TIMENote.6
2500ms,80ms/115VAC 600ms,80ms/230VAC
HOLD UP TIME (Typ.)
15ms / 115VAC, 230VAC

INPUT

VOLTAGE RANGENote.5
90 ~ 305VAC 127 ~ 431VDC (Please refer to "STATIC CHARACTERISTIC" section)
FREQUENCY RANGE
47 ~ 63Hz
POWER FACTOR (Typ.)
PF≧0.98/115VAC, PF≧0.95/230VAC, PF≧0.94/277VAC @ full load (Please refer to "POWER FACTOR (PF) CHARACTERISTIC" section)
TOTAL HARMONIC DISTORTION
THD< 20% (@ load≧50% / 115VAC,230VAC; @ load≧75% / 277VAC) (Please refer to " TOTAL HARMONIC DISTORTION (THD) " section)
EFFICIENCY (Typ.) (230Vac)
95%
EFFICIENCY (Typ.) (277Vac)
95%
AC CURRENT (Typ.)
3.5A / 115VAC 1.65A / 230VAC 1.45A / 277VAC
INRUSH CURRENT(Typ.)
COLD START 70A(twidth=1010μs measured at 50% Ipeak) at 230VAC; Per NEMA 410
MAX. No. of PSUs on 16A CIRCUIT BREAKER
1 unit (circuit breaker of type B) / 2 units (circuit breaker of type C) at 230VAC
LEAKAGE CURRENT
<0.75mA / 277VAC

PROTECTION

OVER CURRENTNote.4
95 ~ 108% Constant current limiting, recovers automatically after fault condition is removed
SHORT CIRCUIT
Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE
59 ~ 65V
OVER TEMPERATURE
Shut down and latch off o/p voltage, re-power on to recover

ENVIRONMENT

WORKING TEMP.
Tcase= -40 ~ +90℃ (Please refer to "OUTPUT LOAD vs TEMPERATURE" section)
MAX. CASE TEMP.
Tcase= +90℃
WORKING HUMIDITY
20 ~ 95% RH non-condensing
STORAGE TEMP., HUMIDITY
-40 ~ +80℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.03%/℃ (0 ~ 50℃)
VIBRATION
10 ~ 500Hz, 5G 12min./1cycle, period for 72min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDS
UL8750(type”HL”), CSA C22.2 No. 250.0-08; BS EN/EN/AS/NZS 61347-1, BS EN/EN/AS/NZS 61347-2-13 independent; GB/T19510.1,GB/T19510.213; IP65 or IP67 (except for HLG-320H C-type); J61347-1, J61347-2-13 (except for C-type), EAC TP TC 004;KC61347-1,KC61347-2-13(except for AB,C-type), BIS IS 15885(Part2/Sec13) (NOTE 13) approved
WITHSTAND VOLTAGE
I/P-O/P:3.75KVAC I/P-FG:2KVAC O/P-FG:1.5KVAC
ISOLATION RESISTANCE
I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION
Compliance to BS EN/EN55015, BS EN/EN55032 (CISPR32) Class B, BS EN/EN61000-3-2 Class C (@ load≧50%) ; BS EN/EN61000-3-3,GB/T 17743 , GB17625.1,EAC TP TC 020
EMC IMMUNITY
Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN61547, BS EN/EN55024, light industry level (surge immunity Line-Earth 4KV, Line-Line 2KV), EAC TP TC 020

OTHERS

MTBF
1702.2K hrs min. Telcordia SR-332 (Bellcore) ; 157.2K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
252*90*43.8mm (L*W*H)
PACKING
1.88Kg; 8pcs/16Kg/0.92CUFT

MODEL ENCODING

Blank (this model)
Io and Vo fixed; IP67
A
Io and Vo adjustable through built-in potentiometer; IP65
B
3 in 1 dimming function (1~10VDC, 10V PWM signal and resistance); IP67
AB
Io adjustable through built-in potentiometer & 3 in 1 dimming function (1~10Vdc, 10V PWM signal and resistance); IP65
C
Terminal block for I/O connection. Output voltage and constant current level can be adjusted through internal potentiometer.
D
Timer dimming function, contact MEAN WELL for details(safety pending).; IP67
Test conditions and notes13
  1. 1. All parameters NOT specially mentioned are measured at 230VAC input, rated current and 25℃ of ambient temperature.
  2. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.
  3. 3. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 4. Please refer to "DRIVING METHODS OF LED MODULE".
  5. 5. De-rating may be needed under low input voltages. Please refer to “STATIC CHARACTERISTIC” sections for details.
  6. 6. Length of set up time is measured at first cold start. Turning ON/OFF the driver may lead to increase of the set up time.
  7. 7. The driver is considered as a component that will be operated in combination with final equipment. Since EMC performance will be affected by the complete installation, the final equipment manufacturers must re-qualify EMC Directive on the complete installation again. (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf)
  8. 8. To fulfill requirements of the latest ErP regulation for lighting fixtures, this LED driver can only be used behind a switch without permanently connected to the mains.
  9. 9. This series meets the typical life expectancy of >62,000 hours of operation when Tcase, particularly tc point (or TMP, per DLC), is about 75℃ or less.
  10. 10. Please refer to the warranty statement on MEAN WELL's website at http://www.meanwell.com.
  11. 11. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).
  12. 12. For any application note and IP water proof function installation caution, please refer our user manual before using. https://www.meanwell.com/Upload/PDF/LED_EN.pdf
  13. 13. BIS certification is for HLG-320H-A only, but products sourced from Taiwan do not have the BIS logo, please contact your MEAN WELL sales for more information.

Technical drawings

HLG-320H-54 BLOCK DIAGRAM
BLOCK DIAGRAM
HLG-320H-54 Illustration (page 5)
Illustration (page 5)
HLG-320H-54 OUTPUT LOAD vs TEMPERATURE(Note.10)
OUTPUT LOAD vs TEMPERATURE(Note.10)
HLG-320H-54 STATIC CHARACTERISTICS
STATIC CHARACTERISTICS
HLG-320H-54 TOTAL HARMONIC DISTORTION
TOTAL HARMONIC DISTORTION
HLG-320H-54 LIFE TIME
LIFE TIME
HLG-320H-54 MECHANICAL SPECIFICATION ※Blank/D-Type
MECHANICAL SPECIFICATION ※Blank/D-Type
HLG-320H-54 WATERPROOF CONNECTION
WATERPROOF CONNECTION

Typical applications

  • LED street lighting
  • LED high-bay lighting
  • Parking space lighting
  • LED fishing lamp
  • LED greenhouse lighting
  • Type “HL” for use in ClassⅠ, Division 2 hazardous (Classified) location.

Downloads

FAQ

Can I use the HLG-320H-54 to power 54V LED strip lighting outdoors?

Yes. The HLG-320H-54 outputs 54V at up to 5.95A (320W), and its IP65/IP67-rated metal housing is designed for indoor and outdoor applications, making it suitable for outdoor 54V LED strip installations. It operates at case temperatures (Tcase) from -40°C to +90°C, with derating at high temperature.

Is the HLG-320H-54 a good driver for 54V LED street light or parking lot fixtures?

Yes. At 320W and 54V, it provides enough power for high-output street light or parking lot LED fixtures. The IP65/IP67-rated metal housing suits outdoor fixtures, and the fanless design is cooled by free-air convection.

Can the HLG-320H-54 drive 54V LED modules for large outdoor signage?

Yes. With 320W at 54V, it can power large sign arrays such as channel letters or illuminated cabinet signs. The IP65/IP67 rating and wide 90-305VAC input make it reliable for outdoor commercial signage in varying weather and mains-voltage conditions.

Can I use the HLG-320H-54 for 54V industrial high-bay LED lighting?

Yes. The 320W capacity handles high-bay fixtures operating at 54V. The constant-current mode with a CC range of 27-54V adapts to the fixture's voltage requirements. The IP65/IP67 rating also allows installation in industrial environments with dust or moisture.

How many meters of 54V LED strip can the HLG-320H-54 power?

Divide 320W by your strip's rated power per meter. For example, a 54V strip at 8W/m would allow up to 40 meters (320W / 8W per meter = 40m). Always check your strip's rated power per meter and keep total load at or below 320W.

Can the HLG-320H-54 handle extreme weather — deep freeze or desert heat?

Yes. It operates at case temperatures (Tcase) from -40°C to +90°C, with output derating at the high end per the load vs temperature curve. Combined with its fanless, IP65/IP67-rated metal housing designed for outdoor use, it suits exposed outdoor installations in cold and hot climates.

Payment & Security

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Customer reviews

4.9 Reviews verified for authenticity
5 ★ (19)
4 ★ (2)
3 ★ (0)
2 ★ (0)
1 ★ (0)

Reviewed by 21 customers across the HLG series

  1. Best outdoor driver we use

    By Hemi K.|2026-06-22✓ Verified Buyer
    Model: HLG-240H-24Quantity: 6

    HLG-240H-24 is IP67 and just keeps going. Powering a car-park flood install, 8 months no issues.

  2. Premium, worth it

    By Bright Spark|2026-06-01✓ Verified Buyer
    Model: HLG-185H-24Quantity: 4

    Built-in PFC, runs cool, DALI option on the B model. Our go-to.

  3. Flawless

    By Olivia D.|2026-05-09✓ Verified Buyer
    Model: HLG-320H-48Quantity: 2

    Drove a 48V architectural run for months, dead silent.

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Mean Well HLG-320H-54 Power Supply 320W 54V 5.95A
Mean Well

Mean Well HLG-320H-54 Power Supply 320W 54V 5.95A

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HLG-320H-54 is the 54V output model of this series: rated current 5.95A, rated power 321.3W, typical efficiency 95%. Type Blank: Io and Vo fixed (IP67).

HLG-320H series is a 320W AC/DC LED driver featuring the dual mode constant voltage and constant current output. HLG-320H operates from 90～305VAC and offers models with different rated voltage ranging between 12V and 54V. Thanks to the high efficiency up to 94%, with the fanless design, the entire series is able to operate for -40℃ ~ +90℃ case temperature under free air convection. The design of metal housing and IP67 ingress protection level allows this series to fit both indoor and outdoor applications.

Features

  • Constant Voltage + Constant Current mode output
  • Metal housing with class I design
  • Built-in active PFC function
  • IP67 rating for indoor or outdoor installations
  • Typical lifettime > 62000 hours
  • 7 years warranty

Typical applications

  • LED street lighting
  • LED high-bay lighting
  • Parking space lighting
  • LED fishing lamp
  • LED greenhouse lighting
  • Type “HL” for use in ClassⅠ, Division 2 hazardous (Classified) location.

Model

  • 185W 54V
  • 185W 54V Adjustable
  • 185W 54V Dimmable
  • 185W 54V Adjustable and Dimmable
  • 240W 54V
  • 240W 54V Adjustable
  • 240W 54V Dimmable
  • 240W 54V Adjustable and Dimmable
  • 320W 54V
  • 320W 54V Adjustable
  • 320W 54V Dimmable
  • 320W 54V Adjustable and Dimmable
  • 480W 54V
  • 480W 54V Adjustable
  • 480W 54V Dimmable
  • 480W 54V Adjustable and Dimmable
  • 600W 54V
  • 600W 54V Adjustable
  • 600W 54V Dimmable
  • 600W 54V Adjustable and Dimmable
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