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Mean Well HLG-120H-C350A Power Supply 150.5W 350mA - Adjustable

Name: Mean Well HLG-120H-C350A Power Supply 150.5W 350mA - Adjustable
Brand: Mean Well
SKU: HLG-120H-C350A
Price: 54.79 USD
Availability: InStock

$54.79 USD

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Model

70W 350mA Adjustable 70W 350mA Adjustable and Dimmable 70W 350mA Dimmable 90W 350mA Adjustable 90W 350mA Adjustable and Dimmable 90W 350mA Dimmable 150W 350mA Adjustable 150W 350mA Adjustable and Dimmable 150W 350mA Dimmable

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Overview

HLG-120H-C350A is the model of this series: rated current 350mA, rated power 150.5W, typical efficiency 94%.

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 IP67/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
IP67 / IP65 design for indoor or outdoor installations
Function options: output adjustable via potentiometer; 3 in 1 dimming; Timer dimming
Typical lifettime>62000 hours
7 years warranty

Specifications

HLG-120H-C350ASpecifications from the official datasheet (2026-02-04 edition)

OUTPUT

RATED CURRENT: 350mA
RATED POWER: 150.5W
CONSTANT CURRENT REGION^Note.2: 215 ~ 430V
CURRENT ADJ. RANGE: Adjustable for A/AB-Type only (via built-in potentiometer)
CURRENT ADJ. RANGE: 175 ~ 350mA
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: 475 ~ 495V 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 or IP67, 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

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-C350A BLOCK DIAGRAM — BLOCK DIAGRAM

HLG-120H-C350A DIMMING OPERATION — DIMMING OPERATION

HLG-120H-C350A Illustration (page 5) — Illustration (page 5)

HLG-120H-C350A OUTPUT LOAD vs TEMPERATURE(Note.8) — OUTPUT LOAD vs TEMPERATURE(Note.8)

HLG-120H-C350A STATIC CHARACTERISTIC — STATIC CHARACTERISTIC

HLG-120H-C350A TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

HLG-120H-C350A MECHANICAL SPECIFICATION — MECHANICAL SPECIFICATION

HLG-120H-C350A Dimensions (mm) — Dimensions (mm)

HLG-120H-C350A WATERPROOF CONNECTION — WATERPROOF CONNECTION

Typical applications

Downloads

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-C350)(EN) PDF Download

Catalogues1

Mean Well LED Driver Catalog PDF Download

FAQ

Can I use the HLG-120H-C350A to drive long series strings of LEDs for architectural cove lighting?

Yes. The HLG-120H-C350A outputs 350mA constant current with a CC voltage range of 215-430V, allowing very long series strings of LEDs. This makes it particularly well suited for architectural cove lighting, linear LED strips, or contour lighting where many LEDs are connected end-to-end. The adjustable output helps fine-tune current to the exact LED specification.

Is the HLG-120H-C350A suitable for driving LED modules in large-format backlit signage?

Yes. The high 215-430V CC voltage range allows you to connect many LED modules in series for large backlit sign panels without needing multiple parallel strings. At 350mA and 150.5W, it can handle substantial sign surfaces while maintaining uniform brightness across the entire string.

Can the HLG-120H-C350A power small LED arrays used in accent or display lighting?

Yes, though this driver is optimized for longer LED strings at 350mA. If your small LED array has a total forward voltage between 215V and 430V, the HLG-120H-C350A will regulate current reliably. For arrays with lower total forward voltages, a lower-voltage model in the HLG-120H-C series would be a better match.

Why does the HLG-120H-C350A have such a high output voltage compared to other HLG-120H models?

The HLG-120H-C350A is a constant current driver rated at 350mA, which is a lower current than its siblings. To deliver approximately 150W at a lower current, the voltage must be higher (Power = Voltage x Current). The 215-430V CC range means this model is designed for long series chains of LEDs rather than short, high-current parallel configurations.

What LED configurations work with the HLG-120H-C350A's 215-430V CC range?

Your LED series string's total forward voltage must fall between 215V and 430V. The exact number of LEDs depends on each individual LED's forward voltage. For example, LEDs with a typical forward voltage around 3.0V could be strung roughly 72-143 units in series, but always verify against the actual LED datasheet values.

Can the HLG-120H-C350A be mounted outdoors on a building facade for decorative LED lighting?

Yes. The series' IP65/IP67 rating protects against dust and water jets, making it suitable for sheltered outdoor locations on building facades. Its case temperature (Tcase) range of -40°C to +90°C, with derating at higher temperatures, covers year-round outdoor temperatures. For fully unsheltered mounting with direct rain, consider additional weather shielding.

What distinguishes the HLG-120H-C350A from the C350AB and C350B?

All three share the same 150.5W, 350mA, 215-430V constant current output. The C350A (this model) has adjustable output via potentiometer but no dimming input. The C350AB adds both potentiometer adjustment and 3-in-1 dimming capability (1-10V, PWM or resistance). The C350B has only the dimming input with no adjustment potentiometer.

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