Mean Well HLG-185H-20AB Power Supply 185W 20V - Adjustable and Dimmable

Name: Mean Well HLG-185H-20AB Power Supply 185W 20V - Adjustable and Dimmable 9.3A
Brand: Mean Well
SKU: HLG-185H-20AB
Price: 66.08 USD
Availability: InStock

Overview

HLG-185H-20AB is the 20V output model of this series: rated current 9.3A, rated power 186W, typical efficiency 93%. Type AB: Io and Vo adjustable through built-in potentiometer & 3 in 1 dimming function (1~10Vdc, 10V PWM signal and resistance) (IP65).

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 IP65 ingress protection level allows this series to fit both indoor and outdoor applications. HLG-185H 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
IP65 rating for indoor or outdoor installations
Function options: output adjustable via potentiometer; 3 in 1 dimming
Typical lifetime > 62000 hours
7 years warranty

Specifications

HLG-185H-20ABSpecifications from the official datasheet (2026-07-24 edition)

OUTPUT

DC VOLTAGE: 20V
CONSTANT CURRENT REGION^Note.4: 10 ~ 20V
RATED CURRENT: 9.3A
RATED POWER: 186W
RIPPLE & NOISE (max.)^Note.2: 150mVp-p
VOLTAGE ADJ. RANGE: Adjustable (via built-in potentiometer) 17 ~ 22V
CURRENT ADJ. RANGE: Adjustable (via built-in potentiometer) 4.65 ~ 9.3A
VOLTAGE TOLERANCE^Note.3: ±1.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±1.0%
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.): 93%
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: 23 ~ 27V 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: 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 (this model): 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 notes15

Technical drawings

HLG-185H-20AB BLOCK DIAGRAM — BLOCK DIAGRAM

HLG-185H-20AB DIMMING OPERATION — DIMMING OPERATION

HLG-185H-20AB Illustration (page 5) — Illustration (page 5)

HLG-185H-20AB STATIC CHARACTERISTICS — STATIC CHARACTERISTICS

HLG-185H-20AB TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

HLG-185H-20AB Dimensions (mm) — Dimensions (mm)

HLG-185H-20AB 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-20AB 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-20AB with a 1-10V dimmer to control 20V LED strip brightness?

Yes. The HLG-185H-20AB accepts 1-10V and PWM dimming signals, so you can pair with a 1-10V wall dimmer or building automation controller for smooth brightness adjustment of 20V LED strips. The built-in potentiometer also lets you set the maximum output level.

Is the HLG-185H-20AB a good option for smart-home or automation-controlled 20V LED lighting?

Yes. Its 3-in-1 dimming input accepts 1-10VDC, 10V PWM or resistance, so it can be driven by smart-home controllers and building management systems that output one of these signals. At 186W and 20V with both dimming and adjustable output, it provides comprehensive control for automated 20V LED lighting scenes.

Can the HLG-185H-20AB power dimmable 20V LED cove or accent lighting in a hospitality setting?

Yes. With 186W at 20V and built-in dimming, it suits hotel lobbies, restaurants, or bars where smooth brightness transitions are needed throughout the day. The adjustable output lets you set the maximum intensity, and the dimming input handles dynamic scene control.

Can I use the HLG-185H-20AB for dimmable 20V LED display lighting in a museum or gallery?

Yes. The dimming input allows precise brightness control for art or artifact illumination, and the adjustable output lets you fine-tune the 20V drive level. At 186W it can power extended runs of display lighting. Its metal housing with IP65/IP67-class protection is well suited to indoor commercial environments.

How many meters of 20V LED strip can the HLG-185H-20AB drive?

The HLG-185H-20AB delivers up to 186W. Divide 186 by your strip's wattage per meter to find the maximum length. A strip rated at 12W/m could run about 15.5 meters (186W / 12W per meter = 15.5m). Always check your strip's rated power per meter before sizing the installation.

Is the HLG-185H-20AB rated for semi-exposed or damp locations?

Yes. The HLG-185H series has a metal housing with IP65/IP67 ingress protection, which the datasheet says suits both indoor and outdoor applications, including damp indoor spaces and semi-exposed commercial areas. Waterproof M12/M15 connectors are available for the output cable in wet locations; follow MEAN WELL's IP installation cautions in the user manual.

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Mean Well HLG-185H-20AB Power Supply 185W 20V - Adjustable and Dimmable 9.3A

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