Mean Well HLG-185H-54 Power Supply 185W 54V

Name: Mean Well HLG-185H-54 Power Supply 185W 54V 3.45A
Brand: Mean Well
SKU: HLG-185H-54
Price: 56.95 USD
Availability: InStock
Rating: 5.0 (4 reviews)

Overview

HLG-185H-54 is the 54V output model of this series: rated current 3.45A, rated power 186.3W, typical efficiency 94%. Type Blank: Io and Vo fixed (IP67).

HLG-185H series is a 185W AC/DC LED driver featuring the dual mode constant voltage and constant current output. HLG-185H 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
IP67 rating for indoor or outdoor installations
Typical lifetime > 62000 hours
7 years warranty

Specifications

HLG-185H-54Specifications from the official datasheet (2026-07-24 edition)

OUTPUT

DC VOLTAGE: 54V
CONSTANT CURRENT REGION^Note.4: 27 ~ 54V
RATED CURRENT: 3.45A
RATED POWER: 186.3W
RIPPLE & NOISE (max.)^Note.2: 200mVp-p
VOLTAGE TOLERANCE^Note.3: ±1.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±0.5%
SETUP, RISE TIME^Note.6: 1000ms,200ms/115VAC 500ms,200ms/230VAC
HOLD UP TIME (Typ.): 16ms / 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≧0.92/277VAC @ 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.): 94%
AC CURRENT (Typ.) 12V: 1.8A / 115VAC 0.8A / 230VAC 0.7A / 277VAC
AC CURRENT (Typ.) 15V ~ 54V: 2.1A / 115VAC 0.9A / 230VAC 0.8A / 277VAC
INRUSH CURRENT (Typ.): COLD START 65A(twidth=445μs measured at 50% Ipeak) at 230VAC; Per NEMA 410
MAX. No. of PSUs on 16A CIRCUIT BREAKER: 4 units (circuit breaker of type B) / 7 units (circuit breaker of type C) at 230VAC
LEAKAGE CURRENT: <0.75mA / 277VAC

PROTECTION

OVER CURRENT: 95 ~ 108% Constant current limiting, recovers automatically after fault condition is removed
SHORT CIRCUIT: Constant current limiting, recovers automatically after fault condition is removed
OVER VOLTAGE: 59 ~ 65V Shut down o/p voltage with auto-recovery or re-power on to recovery
OVER TEMPERATURE^Note.9: Shut down o/p voltage, recovers automatically after temperature goes down

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 ~ 60℃)
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 61347-1, BS EN/EN 61347-2-13，AS/NZS 61347-1, AS/NZS 61347-2-13 independent;GB/T19510.1,GB/T19510.213 (except for D-type) ; IP65 or IP67; J61347-1, J61347-2-13(except for D-type) , EAC TP TC 004, KC61347-1,KC61347-2-13 (except for D-type) 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(except for D-type) ,EAC TP TC 020, KSC 9815(except for D-type)
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, KSC 9547(except for D-type)

OTHERS

MTBF: 2184.8K hrs min. Telcordia SR-332 (Bellcore) ; 197.3K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 228*68*38.8mm (L*W*H)
PACKING: 1.15Kg; 12pcs/14.8Kg/0.8CUFT

Certifications & ratings

Type: HL

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 and Vo adjustable through built-in potentiometer & 3 in 1 dimming function (1~10Vdc, 10V PWM signal and resistance); IP65
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. For OTP which triggered at light load/no load condition, proceed AC repower on to recovery.
10. 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.
11. Please refer to the warranty statement on MEAN WELL's website at http://www.meanwell.com.
12. 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).
13. 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
15. Products sourced from the Americas regions may only have the UL, CE and UKCA logos. Please contact your MEAN WELL sales for more information.

Technical drawings

HLG-185H-54 BLOCK DIAGRAM — BLOCK DIAGRAM

HLG-185H-54 Illustration (page 5) — Illustration (page 5)

HLG-185H-54 STATIC CHARACTERISTICS — STATIC CHARACTERISTICS

HLG-185H-54 TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

HLG-185H-54 MECHANICAL SPECIFICATION ※Blank/D-Type — MECHANICAL SPECIFICATION ※Blank/D-Type

HLG-185H-54 Dimensions (mm) — Dimensions (mm)

HLG-185H-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

Datasheet1

HLG-185H-54 datasheetHLG-185H-SPEC.PDF · 2026-07-24 edition PDF Download

Certificates5

UL Certificate (HLG-185H)(EN) PDF Download

TUV Certificate (HLG-185H)(EN) PDF Download

EMC Certificate (HLG-185H)(EN) PDF Download

PSE Certificate (HLG-185H)(EN) PDF Download

CCC Certificate(HLG-185H)(EN) PDF Download

Catalogues1

Mean Well LED Driver Catalog PDF Download

FAQ

Can I use the HLG-185H-54 to power 54V LED strip lighting outdoors?

Yes. The HLG-185H-54 outputs 54V at up to 3.45A (186.3W), and its metal housing with IP65/IP67 ingress protection is designed for outdoor applications, making it suitable for outdoor 54V LED strip runs. Its -40°C to +90°C case temperature range (with derating at higher temperatures) handles harsh weather.

Is the HLG-185H-54 suitable for powering 54V LED high-bay or warehouse lighting?

Yes. At 186.3W and 54V, it provides enough power for medium-output high-bay or linear fixtures commonly found in warehouses and production areas. The IP65/IP67-rated metal housing also suits dusty industrial environments.

Can the HLG-185H-54 drive 54V LED modules for large outdoor signage?

Yes. The 186.3W at 54V output can power 54V channel letters or cabinet sign modules. Its wide 90-305VAC input suits varying commercial mains supplies, and the IP65/IP67-rated metal housing is designed for exterior mounting on the sign structure.

How many meters of 54V LED strip can the HLG-185H-54 power?

Divide 186.3W by the strip's rated power per meter. For example, a 54V strip consuming 12W/m could run about 15.5 meters (186.3W / 12W per meter). Always check your strip's rated power per meter and keep total load at or below 186.3W.

Can the HLG-185H-54 operate in extreme cold or hot outdoor environments?

Yes. It is rated for a case temperature (Tcase) of -40°C to +90°C, covering arctic-cold nights; in hot conditions the output load must be derated per the datasheet's load-vs-temperature curve. The IP65/IP67-rated metal housing is designed for outdoor use, and working humidity is rated 20-95% RH non-condensing.

What are the differences between the HLG-185H-54, 54A, 54AB, and 54AWE models?

All share the same 186.3W / 54V / 3.45A core specs. The base HLG-185H-54 has fixed output. The -54A adds output voltage/current adjustment via built-in potentiometer. The -54AB adds both adjustment and 1-10V/PWM/resistance dimming. The datasheet does not define the AWE suffix, so confirm its features before ordering.

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Model	Power	Voltage	Current	IP Rating	Price
Mean Well HLG-185H-24A Power Supply 185W 24V - Adjustable 7.8A	187.2W	24V	7.8A	IP65	$44.14	View
Mean Well HLG-185H-24 Power Supply 185W 24V 7.8A	187.2W	24V	7.8A	IP67	$58.71	View

Customer reviews

5.0 Reviews verified for authenticity

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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!

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Mean Well HLG-185H-54 Power Supply 185W 54V 3.45A

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