Mean Well HLG-120H-48AB Power Supply 120W 48V - Adjustable and Dimmable

Name: Mean Well HLG-120H-48AB Power Supply 120W 48V - Adjustable and Dimmable 2.5A
Brand: Mean Well
SKU: HLG-120H-48AB
Price: 61.18 USD
Availability: InStock

Overview

HLG-120H-48AB is the 48V output model of this series: rated current 2.5A, rated power 120W, typical efficiency 93.5%.

HLG-120H series is a 120W AC/DC LED driver featuring the dual mode constant voltage and constant current output. HLG-120H operates from 90～305VAC and offers models with different rated voltage ranging between 12V and 54V. Thanks to the high efficiency up to 93.5%, with the fanless design, the entire series is able to operate for -40℃ ~ +80℃ case temperature under free air convection. The design of metal housing and IP67/IP65 ingress protection level allows this series to fit both indoor and outdoor applications. HLG-120H 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
IP67 / IP65 rating for indoor or outdoor installations
Function options: output adjustable via potentiometer; 3 in 1 dimming; Timer dimming
Typical lifetime > 62000 hours
7 years warranty

Specifications

HLG-120H-48ABSpecifications from the official datasheet (2019-12-10 edition)Download datasheet PDF

OUTPUT

DC VOLTAGE: 48V
CONSTANT CURRENT REGION^Note.4: 24 ~ 48V
RATED CURRENT: 2.5A
RATED POWER: 120W
RIPPLE & NOISE (max.)^Note.2: 200mVp-p
VOLTAGE ADJ. RANGE: Adjustable for A/AB-Type only (via built-in potentiometer) 43 ~ 53V
CURRENT ADJ. RANGE: Adjustable for A/AB-Type only (via built-in potentiometer) 1.2 ~ 2.5A
VOLTAGE TOLERANCE^Note.3: ±1.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±0.5%
SETUP, RISE TIME^Note.6: 1200ms,50ms/115VAC 500ms,50ms/230VAC
HOLD UP TIME (Typ.): 12ms / 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≧0.93/277VAC @ 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.): 93.5%
AC CURRENT (Typ.): 1.4A / 115VAC 0.6A / 230VAC 0.55A / 277VAC
INRUSH CURRENT (Typ.): COLD START 60A(twidth=375μs measured at 50% Ipeak) at 230VAC; Per NEMA 410
MAX. No. of PSUs on 16A CIRCUIT BREAKER: 5 units (circuit breaker of type B) / 9 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: 54 ~ 63V Shut down o/p voltage with auto-recovery or re-power on to recovery
OVER TEMPERATURE: Shut down o/p voltage, recovers automatically after temperature goes down

ENVIRONMENT

WORKING TEMP.: Tcase= -40 ~ +80℃ (Please refer to "OUTPUT LOAD vs TEMPERATURE" section)
MAX. CASE TEMP.: Tcase= +80℃
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^Note.8: UL8750 (type”HL”) , CSA C22.2 No. 250.0-08, EN/AS/NZS 61347-1, EN/AS/NZS 61347-2-13 independent; GB19510.1,GB19510.14, IP65 or IP67, J61347-1, J61347-2-13 (except for B,AB and D-type),BIS IS15885( for 12B,24B,36A,54A only), EAC TP TC 004 , KC61347-1,KC61347-2-13(except for AB,D-type) approved ; Design refer to UL60950-1, TUV EN60950-1
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^Note.8: Compliance to EN55015, EN55032 Class B, EN61000-3-2 Class C (@ load≧50%) ; EN61000-3-3,GB17743 and GB17625.1, EAC TP TC 020
EMC IMMUNITY: Compliance to EN61000-4-2,3,4,5,6,8,11, EN61547, EN55024, light industry level (surge immunity Line-Earth 4KV, Line-Line 2KV),EAC TP TC 020

OTHERS

MTBF: 559.5K hrs min. Telcordia SR-332 (Bellcore); 167.1Khrs min. MIL-HDBK-217F (25℃)
DIMENSION: 220*68*38.8mm (L*W*H)
PACKING: 1.12Kg; 12pcs/14.4Kg/0.8CUFT

Certifications & ratings

Type: HL

Test conditions and notes12

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.
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

Technical drawings

HLG-120H-48AB BLOCK DIAGRAM — BLOCK DIAGRAM

HLG-120H-48AB DIMMING OPERATION — DIMMING OPERATION

HLG-120H-48AB Illustration (page 5) — Illustration (page 5)

HLG-120H-48AB STATIC CHARACTERISTICS — STATIC CHARACTERISTICS

HLG-120H-48AB TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

HLG-120H-48AB MECHANICAL SPECIFICATION — MECHANICAL SPECIFICATION

HLG-120H-48AB ‧tc : Max. Case Temperature — ‧tc : Max. Case Temperature

HLG-120H-48AB Dimensions (mm) — Dimensions (mm)

HLG-120H-48AB 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

Certificates5

UL Certificate (HLG-120H)(EN) PDF Download

TUV Certificate (HLG-120H)(EN) PDF Download

EMC Certificate (HLG-120H)(EN) PDF Download

PSE Certificate (HLG-120H)(EN) PDF Download

ENEC Certificate(HLG-120H)(EN) PDF Download

Catalogues1

Mean Well LED Driver Catalog PDF Download

FAQ

Can I use the HLG-120H-48AB with a 1-10V dimmer to control 48V LED strip brightness?

Yes. The HLG-120H-48AB accepts 1-10V and PWM dimming signals, so you can pair with a standard 1-10V wall dimmer or automation controller to smoothly adjust 48V LED strip brightness. It also has a built-in potentiometer for setting the maximum output level.

Is the HLG-120H-48AB a good choice for smart-home or building-automation controlled LED lighting?

Yes. Its dimming input (1-10V/PWM) can be driven by smart-home controllers or BMS systems that output a 1-10V or 10V PWM signal. Combined with 120W at 48V and adjustable output, it gives you both automated and manual brightness control for 48V LED fixtures.

Can the HLG-120H-48AB power 48V architectural LED cove or accent lighting?

Yes. With 120W at 48V and built-in dimming capability, it is well suited for cove and accent lighting where smooth brightness control is important. The adjustable output lets you fine-tune the drive level to match the specific LED strip or fixture installed.

Can I use the HLG-120H-48AB for dimmable 48V LED signage?

Yes. The 120W output at 48V can drive LED sign modules, and the 1-10V/PWM dimming input lets you reduce brightness at night or during off-peak hours. This is useful for commercial signs that need scheduled dimming to comply with local lighting ordinances.

How many meters of 48V LED strip can the HLG-120H-48AB drive?

The HLG-120H-48AB delivers up to 120W. Divide 120 by your strip's wattage per meter to find the maximum length. A strip rated at 12W/m, for example, could run up to 10 meters (120W / 12W per meter = 10m). Always check your strip's rated power per meter before sizing.

Is the HLG-120H-48AB rated for semi-outdoor locations like covered walkways?

Yes. Its IP65 rating protects against dust and low-pressure water jets, making it suitable for covered walkways, porches, or soffits where it is not directly exposed to sustained rainfall. For fully exposed outdoor locations, consider the IP67-rated HLG-120H-48B with dimming.

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Mean Well HLG-120H-48AB Power Supply 120W 48V - Adjustable and Dimmable 2.5A