Mean Well HLG-120H-C1050AB Power Supply 155.4W 1050mA - Adjustable and Dimmable for LED and Street Lighting

Name: Mean Well HLG-120H-C1050AB Power Supply 155.4W 1050mA - Adjustable and Dimmable
Brand: Mean Well
SKU: HLG-120H-C1050AB
Price: 57.24 USD
Availability: InStock

Overview

HLG-120H-C1050AB is the model of this series: rated current 1050mA, rated power 155.4W, typical efficiency 94%. Type AB: Io adjustable through built-in potentiometer & 3 in 1 dimming function (1~10Vdc, 10V PWM signal and resistance) (IP65).

HLG-120H-C series is a 150W AC/DC LED driver featuring the constant current mode and high voltage output. HLG-120H-C operates from 90~305VAC and offers models with different rated current ranging between 350mA and 1400mA. 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-120H-C is equipped with various function options, such as dimming methodologies, so as to provide the optimal design flexibility for LED lighting system.

Features

Constant current mode output
Metal housing with ClassⅠ design
Built-in active PFC function
IP65 design for indoor or outdoor installations
Function options: output adjustable via potentiometer; 3 in 1 dimming
Typical lifettime>62000 hours
7 years warranty

Specifications

HLG-120H-C1050ABSpecifications from the official datasheet (2026-02-04 edition)

OUTPUT

RATED CURRENT: 1050mA
RATED POWER: 155.4W
CONSTANT CURRENT REGION^Note.2: 74V ~ 148V
CURRENT ADJ. RANGE: Adjustable for A/AB-Type only (via built-in potentiometer)
CURRENT ADJ. RANGE: 525 ~ 1050mA
CURRENT RIPPLE: 8.0% max. @rated current
CURRENT TOLERANCE: ±5%
SET UP TIME^Note.4: 1000ms / 115VAC 500ms / 230VAC

INPUT

VOLTAGE RANGE^Note.3: 90 ~ 305VAC 127 ~ 431VDC (Please refer to "STATIC CHARACTERISTIC" section)
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR (Typ.): PF≧0.98/115VAC, PF≧0.96/230VAC, 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.): 94%
AC CURRENT (Typ.): 1.6A / 115VAC 0.8 A / 230VAC 0.7A / 277VAC
INRUSH CURRENT(Typ.): COLD START 50A(twidth=600μs measured at 50% Ipeak) at 230VAC; Per NEMA 410
MAX. No. of PSUs on 16A CIRCUIT BREAKER: 4 units (circuit breaker of type B) / 6 units (circuit breaker of type C) at 230VAC
LEAKAGE CURRENT: <0.75mA / 277VAC

PROTECTION

SHORT CIRCUIT: Constant current limiting, recovers automatically after fault condition is removed
OVER VOLTAGE: 165 ~ 175V Shut down o/p voltage with auto-recovery or re-power on to recovery
OVER TEMPERATURE^Note.7: 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: 10 ~ 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^Note.6: UL8750, CSA C22.2 No. 250.13-12, BS EN/EN/AS/NZS 61347-1, BS EN/EN/AS/NZS 61347-2-13, BS EN/EN62384 independent, GB/T19510.1, GB/T19510.213, IP65, J61347-1, J61347-2-13, EAC TP TC 004 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^Note.6: Compliance to BS EN/EN55015, 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, light industry level (surge immunity Line-Earth 4KV, Line-Line 2KV), EAC TP TC 020

OTHERS

MTBF: 2456.4K hrs min. Telcordia SR-332 (Bellcore) ; 191.1K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 220*68*38.8mm (L*W*H)
PACKING: 1.04Kg; 12pcs/13.5Kg/0.8CUFT

MODEL ENCODING

A: Io adjustable through built-in potentiometer; IP65
B: 3 in 1 dimming function (1~10Vdc, 10V PWM signal and resistance); IP67
AB (this model): Io 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 notes11

1. All parameters NOT specially mentioned are measured at 230VAC input, rated current and 25℃ of ambient temperature.
2. Please refer to "DRIVING METHODS OF LED MODULE".
3. De-rating may be needed under low input voltages. Please refer to “STATIC CHARACTERISTIC” sections for details.
4. 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.
5. 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)
6. 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.
7. For OTP which triggered at light load/no load condition, proceed AC repower on to recovery.
8. This series meets the typical life expectancy of >62,000 hours of operation when Tcase, particularly tc point (or TMP, per DLC), is about 80℃ or less.
9. Please refer to the warranty statement on MEAN WELL's website at http://www.meanwell.com
10. 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).
11. 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-C1050AB BLOCK DIAGRAM — BLOCK DIAGRAM

HLG-120H-C1050AB DIMMING OPERATION — DIMMING OPERATION

HLG-120H-C1050AB Illustration (page 5) — Illustration (page 5)

HLG-120H-C1050AB OUTPUT LOAD vs TEMPERATURE(Note.8) — OUTPUT LOAD vs TEMPERATURE(Note.8)

HLG-120H-C1050AB STATIC CHARACTERISTIC — STATIC CHARACTERISTIC

HLG-120H-C1050AB TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

HLG-120H-C1050AB Dimensions (mm) — Dimensions (mm)

HLG-120H-C1050AB WATERPROOF CONNECTION — WATERPROOF CONNECTION

Typical applications

Downloads

Datasheet1

HLG-120H-C1050AB datasheetHLG-120H-C-SPEC.PDF · 2026-02-04 edition PDF Download

Certificates5

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

CB Certificate(HLG-120H-C)(EN) PDF Download

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

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

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

Test reports1

Test Report(HLG-120H-C1050)(EN) PDF Download

Catalogues1

Mean Well LED Driver Catalog PDF Download

FAQ

Can I use the HLG-120H-C1050AB with a 1-10V dimmer for LED downlight brightness control?

Yes. The HLG-120H-C1050AB accepts a 1-10V or PWM dimming signal (or a resistance), making it straightforward to integrate with standard commercial dimming systems. It delivers 1050mA constant current across a 74-148V range, so you can dim high-power LED downlights smoothly.

Is the HLG-120H-C1050AB suitable for dimmable LED high-bay fixtures in a retail space?

Yes. At 155.4W and 1050mA constant current, the HLG-120H-C1050AB can power high-output LED fixtures used in retail environments. The built-in dimming input allows you to adjust light levels for different display areas or time-of-day schedules, and the adjustable output lets you fine-tune the drive current to the fixture's LED module.

Can the HLG-120H-C1050AB drive a series string of LED modules for channel-letter signs with dimming?

Yes, as long as the total forward voltage of the LED string falls within 74-148V. The driver provides regulated 1050mA constant current, and the dimming input lets you reduce brightness for nighttime operation or energy savings. The wide 90-305VAC input handles most commercial electrical supplies.

What dimming methods does the HLG-120H-C1050AB support?

The HLG-120H-C1050AB supports 1-10VDC, 10V PWM and resistance dimming (3-in-1) through its built-in dimming input. It also has an adjustable potentiometer for setting the baseline output current (525-1050mA). This combination allows both manual trimming and automated dimming control from a building management system or standalone dimmer.

How many LEDs can I run in series with the HLG-120H-C1050AB?

That depends on each LED's forward voltage. The HLG-120H-C1050AB operates in constant current mode at 1050mA with a CC voltage range of 74-148V. Your series string's total forward voltage must land within that range. For example, LEDs with a 3V forward voltage could be strung roughly 25-49 units in series, but always verify against the actual LED datasheet values.

Can the HLG-120H-C1050AB handle temperature extremes in an unheated outdoor sign cabinet?

Yes. It works at a case temperature (Tcase) of -40°C to +90°C, with load derating at higher temperatures per the output load vs temperature curve, which covers winter cold and heat buildup inside enclosed sign cabinets within those limits. The series' IP65/IP67 rating also protects against dust and water jets, though the cabinet itself provides additional environmental shielding.

Payment & Security

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Model	Power	Voltage	Current	IP Rating
Mean Well HLG-120H-C350B Power Supply 150.5W 350mA - Dimmable	150.5W	430V	0.35A	IP65	View
Mean Well HLG-120H-C350AB Power Supply 150.5W 350mA - Adjustable and Dimmable	150.5W	430V	0.35A	IP65	View

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Mean Well HLG-120H-C1050AB Power Supply 155.4W 1050mA - Adjustable and Dimmable

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