Image shown is a representation only. Exact specifications should be obtained from the product datasheet.

Mean Well HLG-120H-C500A Power Supply 150W 500mA - Adjustable

premium quality7 years warrantyaluminium casinghigh efficiencyhigh output voltage > 60VDC

SKU HLG-120H-C500A

Log in to see price Trade pricing & online ordering for account holders

Select model — 6 in this family

HLG-120H-C500A

HLG-120H-C500A 500mA Adjustable Backorder

HLG-120H-C500B 500mA Dimmable Backorder

HLG-120H-C500AB 500mA Adjustable and Dimmable Backorder

HLG-185H-C500A 500mA Adjustable Backorder

HLG-185H-C500B 500mA Dimmable Backorder

HLG-185H-C500AB 500mA Adjustable and Dimmable Backorder

Product variants

Available to order

Overview

HLG-120H-C500A is the model of this series: rated current 500mA, rated power 150W, 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-C500ASpecifications from the official datasheet (2026-02-04 edition)

OUTPUT

RATED CURRENT: 500mA
RATED POWER: 150W
CONSTANT CURRENT REGION^Note.2: 150V ~ 300V
CURRENT ADJ. RANGE: Adjustable for A/AB-Type only (via built-in potentiometer)
CURRENT ADJ. RANGE: 250 ~ 500mA
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: 335 ~ 355V 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-C500A BLOCK DIAGRAM — BLOCK DIAGRAM

HLG-120H-C500A Illustration (page 5) — Illustration (page 5)

HLG-120H-C500A OUTPUT LOAD vs TEMPERATURE(Note.8) — OUTPUT LOAD vs TEMPERATURE(Note.8)

HLG-120H-C500A STATIC CHARACTERISTIC — STATIC CHARACTERISTIC

HLG-120H-C500A TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

HLG-120H-C500A MECHANICAL SPECIFICATION ※ A-Type — MECHANICAL SPECIFICATION ※ A-Type

HLG-120H-C500A Dimensions (mm) — Dimensions (mm)

HLG-120H-C500A WATERPROOF CONNECTION — WATERPROOF CONNECTION

Typical applications

Downloads

Datasheet1

HLG-120H-C500A 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-C500)(EN) PDF Download

Catalogues1

Mean Well LED Driver Catalog PDF Download

FAQ

Can I use the HLG-120H-C500A to power high-voltage LED arrays in commercial signage?

Yes. The HLG-120H-C500A delivers a constant 500mA with an output voltage range of 150-300V, providing up to 150W. It is well-suited for series-connected LED strings in channel letters, lightbox signs, or illuminated displays. The exact number of LEDs depends on each LED's forward voltage — ensure the total series voltage falls within 150-300V.

Is the HLG-120H-C500A a good fit for driving LED downlights in a warehouse or retail space?

Yes. At 500mA constant current and up to 150W, it can drive high-voltage LED downlight modules commonly used in commercial ceilings. The adjustable output (A suffix) lets you fine-tune the current via potentiometer to match your specific LED load, which is helpful when optimizing brightness across a lighting zone.

Can I adjust the output current of the HLG-120H-C500A to match my LED load?

Yes. The A suffix indicates this model includes a built-in potentiometer for output current adjustment. This allows you to reduce the drive current from the rated 500mA down to 250mA (adjustment range 250-500mA) to match your LED module's requirements. It does not include a dimming input — for dimming, consider the C500B or C500AB variant.

Can the HLG-120H-C500A be used for LED grow light panels in a greenhouse?

The HLG-120H-C500A provides 150W at 500mA constant current with a CC voltage range of 150-300V, which can work for high-voltage LED grow light arrays. Its working humidity is rated 10-95% RH non-condensing, so it should be mounted in a location protected from direct water spray and condensation dripping. Its case temperature (Tcase) range of -40°C to +90°C, with derating at higher temperatures, suits greenhouse conditions.

Is the HLG-120H-C500A suitable for outdoor installations exposed to rain?

The HLG-120H-C series carries an IP65 or IP67 rating depending on version, meaning protection against dust and water jets. It is appropriate for covered or sheltered outdoor locations such as soffits, canopies, or weatherproof enclosures. The sheet notes a waterproof connector can be fitted to the output cable for outdoor use; follow the user manual's waterproof installation cautions.

How does the HLG-120H-C500A compare to the C350 and C700 variants in the same series?

The HLG-120H constant current models all deliver approximately 150W but at different current and voltage combinations. The C350 runs at 350mA with a 215-430V range, the C500A at 500mA with a 150-300V range, and the C700 at 700mA with a 107-215V range. Choose based on your LED string's forward voltage requirements and preferred drive current.

Payment & Security

Payment methods

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Please log in to write a review.

{ "id":8420832706859, "variants" :[{ "context":"default", "variant_id": 45621790671147, "sku":"HLG-120H-C500A", "inventory_qty" : 0, "customer" :false, "custom_html" :"\u003ca class=\"text-current logged-out-price logged-out\" href=\"https:\/\/wellforces.co.nz\/customer_authentication\/redirect?locale=en\u0026region_country=NZ\"\u003e\n \u003cspan \u003ePlease \u003c\/span\u003e \u003cspan class=\"login-text\"\u003eLogin\u003c\/span\u003e \u003cspan\u003e for Pricing\u003c\/span\u003e\n \u003c\/a\u003e", "volume_html" :"\u003cvolume-pricing class=\"parent-display inside_product_form\" id=\"volume-pricing-main\" \u003e\u003c\/volume-pricing\u003e" } ] }