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Mean Well HLG-120H-C350B Power Supply 150.5W 350mA - Dimmable

Name: Mean Well HLG-120H-C350B Power Supply 150.5W 350mA - Dimmable
Brand: Mean Well
SKU: HLG-120H-C350B
Price: 56.1 USD
Availability: InStock

$56.10 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-C350B 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-C350BSpecifications 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-C350B BLOCK DIAGRAM — BLOCK DIAGRAM

HLG-120H-C350B DIMMING OPERATION — DIMMING OPERATION

HLG-120H-C350B Illustration (page 5) — Illustration (page 5)

HLG-120H-C350B OUTPUT LOAD vs TEMPERATURE(Note.8) — OUTPUT LOAD vs TEMPERATURE(Note.8)

HLG-120H-C350B STATIC CHARACTERISTIC — STATIC CHARACTERISTIC

HLG-120H-C350B TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

HLG-120H-C350B MECHANICAL SPECIFICATION — MECHANICAL SPECIFICATION

HLG-120H-C350B Dimensions (mm) — Dimensions (mm)

HLG-120H-C350B 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-C350B to drive high-voltage LED string arrays for commercial signage?

Yes. The HLG-120H-C350B operates in constant current mode at 350mA with an output voltage range of 215-430V, making it well-suited for long series strings of LEDs used in channel letters, lightbox signage, or large illuminated displays. The number of LEDs you can run in series depends on each LED's forward voltage, so verify your total string voltage falls within the 215-430V range.

Is the HLG-120H-C350B suitable for powering LED downlights in a covered outdoor canopy?

Yes. With 150.5W of power at a regulated 350mA and the series' IP65/IP67 rating, it can reliably drive high-voltage LED downlight arrays in sheltered outdoor environments such as canopies, carports, or building overhangs. It works at a case temperature (Tcase) of -40°C to +90°C, with load derating at higher temperatures per the sheet's output load vs temperature curve.

Can the HLG-120H-C350B be used with a dimmer for adjustable-brightness LED fixtures?

Yes. The B suffix indicates this model includes a 3-in-1 dimming input (1-10VDC, 10V PWM signal or resistance), so you can pair it with a compatible dimmer to control LED brightness without needing the output current adjustment potentiometer found on A-suffix models. This makes it a good choice for applications where brightness needs to change but the LED load is fixed.

Is the HLG-120H-C350B appropriate for driving LED modules in an outdoor parking garage?

Yes. The series' IP65/IP67 rating protects against dust ingress and water jets, which covers typical parking garage conditions. At 150.5W and 350mA constant current with a CC voltage range of 215-430V, it can power high-voltage LED modules used in garage ceiling fixtures. Keep the case at or below the +90°C maximum case temperature in enclosed mounting locations.

What operating conditions does the HLG-120H-C350B handle for outdoor installations?

The HLG-120H-C series is rated IP65 or IP67 depending on version and works at a case temperature (Tcase) of -40°C to +90°C, with derating per the output load vs temperature curve. This suits sheltered outdoor and semi-exposed installations. The sheet notes a waterproof connector can be fitted to the output cable for dry, wet, damp or outdoor use; follow the user manual's waterproof installation cautions.

What are the differences between the HLG-120H-C350A, C350AB, and C350B models?

All three share the same 150.5W, 350mA, 215-430V constant current specs. The C350A offers output current adjustment via built-in potentiometer. The C350AB combines both output adjustment and a 3-in-1 dimming input (1-10V, PWM or resistance). The C350B provides the dimming input only, without output adjustment. Choose based on whether you need adjustability, dimmability, or both.

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