Mean Well HLG-120H-C1050A Power Supply – Adjustable

Name: Mean Well HLG-120H-C1050A Power Supply 155.4W 1050mA - Adjustable
Brand: Mean Well
SKU: HLG-120H-C1050A
Price: 54.79 USD
Availability: InStock

Overview

HLG-120H-C1050A is the model of this series: rated current 1050mA, rated power 155.4W, typical efficiency 94%. Type A: Io adjustable through built-in potentiometer (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
Typical lifettime>62000 hours
7 years warranty

Specifications

HLG-120H-C1050ASpecifications 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 (this model): Io 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
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-C1050A BLOCK DIAGRAM — BLOCK DIAGRAM

HLG-120H-C1050A Illustration (page 5) — Illustration (page 5)

HLG-120H-C1050A OUTPUT LOAD vs TEMPERATURE(Note.8) — OUTPUT LOAD vs TEMPERATURE(Note.8)

HLG-120H-C1050A STATIC CHARACTERISTIC — STATIC CHARACTERISTIC

HLG-120H-C1050A TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

HLG-120H-C1050A MECHANICAL SPECIFICATION ※ A-Type — MECHANICAL SPECIFICATION ※ A-Type

HLG-120H-C1050A Dimensions (mm) — Dimensions (mm)

HLG-120H-C1050A WATERPROOF CONNECTION — WATERPROOF CONNECTION

Typical applications

Downloads

Datasheet1

HLG-120H-C1050A 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-C1050A to drive high-power LED downlights?

Yes. The HLG-120H-C1050A delivers a constant 1050mA across a 74-148V output range, making it well suited for high-power COB or multi-chip LED downlights that operate in that voltage window. At 155.4W it can handle substantial ceiling-mounted fixtures, and the adjustable output lets you trim current to match the exact LED module requirements.

Is the HLG-120H-C1050A a good fit for driving LED signage modules in series?

Yes, provided your series string of signage modules has a combined forward voltage between 74V and 148V. The driver delivers a regulated 1050mA constant current, so it maintains consistent brightness across the string. Its wide 90-305VAC input also accommodates varying mains supplies found in commercial sign installations.

Can the HLG-120H-C1050A power LED arrays in a warehouse or industrial bay light?

Yes. With 155.4W at 1050mA and the series' IP65/IP67 rating, the HLG-120H-C1050A is suitable for industrial high-bay or warehouse LED fixtures. It works at a case temperature (Tcase) of -40°C to +90°C, which suits unheated facilities, and the adjustable output (525-1050mA) allows fine-tuning the current to the specific LED array.

How many LEDs can the HLG-120H-C1050A drive in a series string?

The number of LEDs depends on each LED's forward voltage. The HLG-120H-C1050A operates in constant current mode at 1050mA with a CC voltage range of 74-148V, so the total forward voltage of your series string must fall within that window. Divide your target voltage by the individual LED forward voltage to determine how many LEDs can be connected in series.

Can the HLG-120H-C1050A be installed in a covered outdoor location like a parking canopy?

Yes. The series' IP65/IP67 rating protects against dust ingress and water jets, making it appropriate for covered outdoor areas such as parking canopies, building soffits, and covered walkways. The sheet notes a waterproof connector can be fitted to the output cable for outdoor use; follow the user manual's waterproof installation cautions.

What is the difference between the HLG-120H-C1050A, C1050AB, and C1050B models?

All three share the same 155.4W, 1050mA, 74-148V constant current output. The C1050A (this model) has adjustable output via a built-in potentiometer but no dimming input. The C1050AB adds both adjustment and a 3-in-1 dimming input (1-10V, PWM or resistance). The C1050B has the dimming input only with no potentiometer adjustment.

Payment & Security

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Model	Power	Voltage	Current	IP Rating
Mean Well HLG-120H-C350A Power Supply 150.5W 350mA - Adjustable	150.5W	430V	0.35A	IP65	View
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-C1050A Power Supply 155.4W 1050mA - Adjustable

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Overview

Features

Specifications

OUTPUT

INPUT

PROTECTION

ENVIRONMENT

SAFETY & EMC

OTHERS

MODEL ENCODING

Technical drawings

Typical applications

Downloads

Datasheet1

Certificates5

Test reports1

Catalogues1

FAQ

Payment & Security

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Mean Well HLG-120H-C1050A Power Supply 155.4W 1050mA - Adjustable

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