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

Name: Mean Well HLG-320H-54A Power Supply 320W 54V - Adjustable 5.95A
Brand: Mean Well
SKU: HLG-320H-54A
Price: 93.02 USD
Availability: InStock
Rating: 5.0 (4 reviews)

Overview

HLG-320H-54A is the 54V output model of this series: rated current 5.95A, rated power 321.3W, typical efficiency 95%. Type A: Io and Vo adjustable through built-in potentiometer (IP65).

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 IP65 ingress protection level allows this series to fit both indoor and outdoor applications. HLG-320H is equipped with various function options, such as dimming methodologies, so as to provide the optimal design flexibility for LED lighting system.

Features

Constant Voltage + Constant Current mode output
Metal housing with class I design
Built-in active PFC function
IP65 rating for indoor or outdoor installations
Function options: output adjustable via potentiometer
Typical lifettime > 62000 hours
7 years warranty

Specifications

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

OUTPUT

DC VOLTAGE: 54V
CONSTANT CURRENT REGION^Note.4: 27 ~ 54V
RATED CURRENT: 5.95A
RATED POWER: 321.3W
RIPPLE & NOISE (max.)^Note.2: 350mVp-p
VOLTAGE ADJ. RANGE: 49 ~ 58V
CURRENT ADJ. RANGE: 2.97 ~ 5.95A
VOLTAGE TOLERANCE^Note.3: ±1.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±0.5%
SETUP, RISE TIME^Note.6: 2500ms,80ms/115VAC 600ms,80ms/230VAC
HOLD UP TIME (Typ.): 15ms / 115VAC, 230VAC

INPUT

VOLTAGE RANGE^Note.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 CURRENT^Note.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: Io and Vo fixed; IP67
A (this model): 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 notes14

1. All parameters NOT specially mentioned are measured at 230VAC input, rated current and 25℃ of ambient temperature.
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. Tolerance : includes set up tolerance, line regulation and load regulation.
4. Please refer to "DRIVING METHODS OF LED MODULE".
5. De-rating may be needed under low input voltages. Please refer to “STATIC CHARACTERISTIC” sections for details.
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. 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. 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. 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. Please refer to the warranty statement on MEAN WELL's website at http://www.meanwell.com.
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. 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. 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.
14. For A/AB type need to consider build in using to comply with Type HL application.

Technical drawings

HLG-320H-54A BLOCK DIAGRAM — BLOCK DIAGRAM

HLG-320H-54A Illustration (page 5) — Illustration (page 5)

HLG-320H-54A OUTPUT LOAD vs TEMPERATURE(Note.10) — OUTPUT LOAD vs TEMPERATURE(Note.10)

HLG-320H-54A STATIC CHARACTERISTICS — STATIC CHARACTERISTICS

HLG-320H-54A TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

HLG-320H-54A MECHANICAL SPECIFICATION ※A-Type — MECHANICAL SPECIFICATION ※A-Type

HLG-320H-54A 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

Datasheet1

HLG-320H-54A datasheetHLG-320H-SPEC.PDF · 2026-02-04 edition PDF Download

Certificates5

CB Certificate (HLG-320H)(EN) PDF Download

TUV Certificate (HLG-320H)(EN) PDF Download

EMC Certificate(HLG-320H)(EN) PDF Download

UL Certificate(HLG-320H)(EN) PDF Download

PSE Certificate(HLG-320H)(EN) PDF Download

Test reports1

Test Report (HLG-320H-54)(EN) PDF Download

Catalogues1

Mean Well LED Driver Catalog PDF Download

FAQ

Can I use the HLG-320H-54A for 54V LED strip lighting in a semi-enclosed outdoor setting?

Yes. The HLG-320H-54A delivers 54V at up to 5.95A (320W), and the HLG-320H series is rated IP65 or IP67 depending on type with a metal housing designed for indoor and outdoor use, so covered walkways, canopies, or soffit-mounted strips are a suitable fit. Check the A-type's rating before a fully rain-exposed installation.

Is the adjustable output on the HLG-320H-54A useful for tuning 54V LED fixture performance?

Yes. The built-in potentiometers let you trim the output voltage (49-58V) and current (2.97-5.95A). This is helpful for matching the driver precisely to your LED load or reducing output slightly without needing an external dimmer.

Can the HLG-320H-54A power 54V LED fixtures in a greenhouse or grow room?

Yes. At 320W and 54V, it handles high-power horticultural LED fixtures. The adjustable output lets you fine-tune voltage and current to the panel's operating point, and the series' IP65/IP67-rated metal housing suits greenhouse and indoor grow-room installations.

Can I use the HLG-320H-54A for 54V LED architectural cove or accent lighting?

Yes. The 320W output can drive long runs of 54V LED cove lighting, and the potentiometer lets you precisely set the output to match the fixture string voltage. The IP65/IP67-rated metal housing suits interior and sheltered architectural installations where dust and occasional moisture are present.

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

Divide 320W by your strip's power consumption per meter. For instance, a 54V strip drawing 12W/m would allow about 26.6 meters (320W / 12W per meter). Check your strip's rated power per meter and keep total load at or below 320W for reliable operation.

Is the HLG-320H-54A suitable for a damp mechanical room or equipment enclosure?

Yes. The HLG-320H series is rated IP65 or IP67 depending on type, and its metal housing is designed for indoor and outdoor applications, making it adequate for mechanical rooms, equipment enclosures, and damp indoor areas. For standing water or submersion risk, check the A-type's rating and MEAN WELL's IP installation cautions.

Payment & Security

Payment methods

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Model	Power	Voltage	Current	IP Rating	Price
Mean Well HLG-320H-24 Power Supply 320W 24V 13.34A	320.16W	24V	13.34A	IP67	$81.83	View
Mean Well HLG-320H-12 Power Supply 264W 12V 22A	264W	12V	22A	IP67	$78.41	View
Mean Well HLG-320H-24B Power Supply 320W 24V- Dimmable 13.34A	320.16W	24V	13.34A	IP67	$81.04	View
Mean Well HLG-320H-12A Power Supply 264W 12V - Adjustable 22A	264W	12V	22A	IP65	$85.04	View
Mean Well HLG-320H-24A Power Supply 320W 24V - Adjustable 13.34A	320.16W	24V	13.34A	IP65	$93.02	View
Mean Well HLG-320H-42A Power Supply 320W 42V - Adjustable 7.65A	321.3W	42V	7.65A	IP65	$86.45	View
Mean Well HLG-320H-48B Power Supply 320W 48V- Dimmable 6.7A	321.6W	48V	6.7A	IP67	$81.04	View

Customer reviews

5.0 Reviews verified for authenticity

5 ★ (4)

4 ★ (0)

3 ★ (0)

2 ★ (0)

1 ★ (0)

Reviewed by 4 customers across the HLG series

By Penny C.|2026-10-03✓ Verified Buyer
Model: HLG-480H-24AQuantity: 2
It is a beast!
By T-Rids |2026-09-14✓ Verified Buyer
Model: HLG-480H-24BQuantity: 1
Very good product
By Maxim|2026-08-25✓ Verified Buyer
Model: HLG-320H-24B ×1, HLG-320H-24B ×1Quantity: 1
Excellent product!
By J. Vega|2026-07-20✓ Verified Buyer
Model: HLG-185H-30Quantity: 1
Exactly what I needed to revive my dead Maytronics Dolphin power supply!

Please log in to write a review.

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

Select model — 20 in this family