Mean Well HLG-120H-12B 120W 12V Dimmable Power Supply - United States

Name: Mean Well HLG-120H-12B Power Supply 120W 12V - Dimmable 10A
Brand: Mean Well
SKU: HLG-120H-12B
Price: 61.83 USD
Availability: InStock

Overview

HLG-120H-12B is the 12V output model of this series: rated current 10A, rated power 120W, typical efficiency 92%. Type B: 3 in 1 dimming function (1~10VDC, 10V PWM signal and resistance) (IP67).

HLG-120H series is a 120W AC/DC LED driver featuring the dual mode constant voltage and constant current output. HLG-120H operates from 90～305VAC and offers models with different rated voltage ranging between 12V and 54V. Thanks to the high efficiency up to 93.5%, with the fanless design, the entire series is able to operate for -40℃ ~ +80℃ case temperature under free air convection. The design of metal housing and IP67 ingress protection level allows this series to fit both indoor and outdoor applications. HLG-120H is equipped with various function options, such as dimming methodologies, so as to provide the optimal design flexibility for LED lighting system.

Features

Constant Voltage + Constant Current mode output
Metal housing with class I design
Built-in active PFC function
IP67 rating for indoor or outdoor installations
Function options: 3 in 1 dimming
Typical lifetime > 62000 hours
7 years warranty

Specifications

HLG-120H-12BSpecifications from the official datasheet (2026-07-24 edition)

OUTPUT

DC VOLTAGE: 12V
CONSTANT CURRENT REGION^Note.4: 6 ~12V
RATED CURRENT: 10A
RATED POWER: 120W
RIPPLE & NOISE (max.)^Note.2: 150mVp-p
VOLTAGE ADJ. RANGE: 10.8 ~ 13.5V
CURRENT ADJ. RANGE: 5 ~ 10A
VOLTAGE TOLERANCE^Note.3: ±2.5%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±2.0%
SETUP, RISE TIME^Note.6: 1200ms,50ms/115VAC 500ms,50ms/230VAC
HOLD UP TIME (Typ.): 12ms / 115VAC, 230VAC

INPUT

VOLTAGE RANGE^Note.5: 90 ~ 305VAC 127 ~ 431VDC (Please refer to "STATIC CHARACTERISTIC" section)
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR (Typ.): PF≧0.98/115VAC, PF≧0.95/230VAC, 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.): 92%
AC CURRENT (Typ.): 1.4A / 115VAC 0.6A / 230VAC 0.55A / 277VAC
INRUSH CURRENT (Typ.): COLD START 60A(twidth=375μs measured at 50% Ipeak) at 230VAC; Per NEMA 410
MAX. No. of PSUs on 16A CIRCUIT BREAKER: 5 units (circuit breaker of type B) / 9 units (circuit breaker of type C) at 230VAC
LEAKAGE CURRENT: <0.75mA / 277VAC

PROTECTION

OVER CURRENT: 95 ~ 108% Constant current limiting, recovers automatically after fault condition is removed
SHORT CIRCUIT: Constant current limiting, recovers automatically after fault condition is removed
OVER VOLTAGE: 14 ~ 17V Shut down o/p voltage with auto-recovery or re-power on to recovery
OVER TEMPERATURE^Note.9: Shut down o/p voltage, recovers automatically after temperature goes down

ENVIRONMENT

WORKING TEMP.: Tcase= -40 ~ +80℃ (Please refer to "OUTPUT LOAD vs TEMPERATURE" section)
MAX. CASE TEMP.: Tcase= +80℃
WORKING HUMIDITY: 20 ~ 95% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +80℃, 10 ~ 95% RH
TEMP. COEFFICIENT: ±0.03%/℃ (0 ~ 60℃)
VIBRATION: 10 ~ 500Hz, 5G 12min./1cycle, period for 72min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDS^Note.8: UL8750 (type”HL”) , CSA C22.2 No. 250.0-08, BS EN/EN 61347-1, BS EN/EN 61347-2-13, AS/NZS 61347-1, AS/NZS 61347-2-13 independent; GB/T19510.1,GB/T19510.213, IP67, J61347-1, J61347-2-13 (except for D-type) ,BIS IS15885( for 12B,24B,36A,54A only), EAC TP TC 004 , KC61347-1,KC61347-2-13 (except for D-type) 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.8: Compliance to BS EN/EN55015, BS EN/EN55032 Class B, BS EN/EN61000-3-2 Class C (@ load≧50%) ; BS EN/EN61000-3-3, GB/T 17743 , GB17625.1, EAC TP TC 020, KSC 9815(except for D-type)
EMC IMMUNITY: Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN61547, BS EN/EN55024, light industry level (surge immunity Line-Earth 4KV, Line-Line 2KV),EAC TP TC 020, KSC 9547(except for D-type)

OTHERS

MTBF: 2185.8K hrs min. Telcordia SR-332 (Bellcore); 167.1Khrs min. MIL-HDBK-217F (25℃)
DIMENSION: 220*68*38.8mm (L*W*H)
PACKING: 1.12Kg; 12pcs/14.4Kg/0.8CUFT

MODEL ENCODING

Blank: Io and Vo fixed; IP67
A: Io and Vo adjustable through built-in potentiometer; IP65
B (this model): 3 in 1 dimming function (1~10VDC, 10V PWM signal and resistance); IP67
AB: Io and Vo 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 notes14

1. All parameters NOT specially mentioned are measured at 230VAC input, rated current and 25℃ of ambient temperature.
2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.
3. Tolerance : includes set up tolerance, line regulation and load regulation.
4. Please refer to "DRIVING METHODS OF LED MODULE".
5. De-rating may be needed under low input voltages. Please refer to “STATIC CHARACTERISTIC” sections for details.
6. 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.
7. 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)
8. 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.
9. For OTP which triggered at light load/no load condition, proceed AC repower on to recovery.
10. This series meets the typical life expectancy of >62,000 hours of operation when Tcase, particularly tc point (or TMP, per DLC), is about 75℃ or less.
11. Please refer to the warranty statement on MEAN WELL's website at http://www.meanwell.com
12. 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).
13. 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
15. Products sourced from the Americas regions may only have the UL, CE and UKCA logos. Please contact your MEAN WELL sales for more information.

Technical drawings

HLG-120H-12B BLOCK DIAGRAM — BLOCK DIAGRAM

HLG-120H-12B DIMMING OPERATION — DIMMING OPERATION

HLG-120H-12B Illustration (page 5) — Illustration (page 5)

HLG-120H-12B STATIC CHARACTERISTICS — STATIC CHARACTERISTICS

HLG-120H-12B TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

HLG-120H-12B ‧tc : Max. Case Temperature — ‧tc : Max. Case Temperature

HLG-120H-12B Dimensions (mm) — Dimensions (mm)

HLG-120H-12B WATERPROOF CONNECTION — WATERPROOF CONNECTION

Typical applications

LED street lighting
LED high-bay lighting
Parking space lighting
LED fishing lamp
LED greenhouse lighting
Type “HL” for use in ClassⅠ, Division 2 hazardous (Classified) location.

Downloads

Datasheet1

HLG-120H-12B datasheetHLG-120H-SPEC.PDF · 2026-07-24 edition PDF Download

Certificates5

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

TUV Certificate (HLG-120H)(EN) PDF Download

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

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

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

Catalogues1

Mean Well LED Driver Catalog PDF Download

FAQ

Can I use the HLG-120H-12B to dim 12V LED landscape path lighting outdoors?

Yes. The HLG-120H-12B supports dimming via 1-10V, PWM, and resistance signals, and its IP67 waterproof rating makes it ideal for fully exposed outdoor landscape lighting. You can dim 12V LED path lights for energy savings at night while the driver handles up to 120W.

Is the HLG-120H-12B a good choice for dimmable 12V LED strip lighting on building facades?

It is well suited for facade lighting applications requiring dimming control. The 120W output at 12V provides 10A of current for driving long runs of 12V LED strip, and the IP67 waterproof rating allows direct exposure to weather without additional enclosures.

Can I power dimmable 12V LED fountain or water feature lighting with the HLG-120H-12B?

The HLG-120H-12B is IP67 rated, which means it can withstand temporary submersion and is well suited for installation near water features. It delivers 12V at up to 10A (120W) with dimming control. However, the driver itself should not be permanently submerged; mount it in a nearby junction box accessible for maintenance.

How many meters of 12V LED strip can the HLG-120H-12B handle?

The HLG-120H-12B provides up to 120W at 12V. Divide 120W by your strip's rated wattage per meter to find the maximum run. For instance, a 12V strip at 14.4W/m allows approximately 8.3 meters (120W / 14.4W per meter). Always check your strip's rated power per meter and keep total load within 120W.

Can the HLG-120H-12B operate reliably in extreme cold or heat?

Yes. The HLG-120H-12B is rated for a -40°C to +80°C case temperature (Tcase), covering extreme cold-climate installations as well as hot enclosed spaces, with output derating at high temperatures. The IP67 metal housing protects the electronics from rain and dust in harsh environments.

What does the 'B' suffix mean on the HLG-120H-12B versus the base HLG-120H-12?

The 'B' suffix indicates the model includes a dimming function input supporting 1-10V, PWM, and resistance dimming signals, while retaining the same IP67 waterproof rating as the base model. The base HLG-120H-12 has fixed output with no dimming. Both deliver 120W at 12V and 10A.

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.

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

Please log in to write a review.

{ "id":8650235216192, "variants" :[{ "context":"default", "variant_id": 46614226960704, "sku":"HLG-120H-12B", "inventory_qty" : 0, "customer" :true, "custom_html" :"\u003cdiv class=\"price\"\u003e\n \u003cdiv class=\"price__default\"\u003e\n \u003cstrong class=\"price__current\"\u003e$61.83\u003c\/strong\u003e\n \u003cs class=\"price__was\"\u003e\u003c\/s\u003e\n \u003c\/div\u003e\n\n \u003cdiv class=\"unit-price relative\" hidden\u003e\u003cspan class=\"visually-hidden\"\u003eUnit price\u003c\/span\u003e\u003cspan class=\"unit-price__price\"\u003e\u003c\/span\u003e\u003cspan class=\"unit-price__separator\"\u003e \/ \u003c\/span\u003e\u003cspan class=\"unit-price__unit\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n \u003cdiv class=\"price__no-variant\" hidden\u003e\n \u003cstrong class=\"price__current\"\u003eUnavailable\u003c\/strong\u003e\n \u003c\/div\u003e\n\n \u003c\/div\u003e", "volume_html" :"\u003cvolume-pricing class=\"parent-display inside_product_form\" id=\"volume-pricing-main\" \u003e\u003c\/volume-pricing\u003e" } ] }

Mean Well HLG-120H-12B Power Supply 120W 12V - Dimmable 10A

Select model — 16 in this family

Overview

Features

Specifications

OUTPUT

INPUT

PROTECTION

ENVIRONMENT

SAFETY & EMC

OTHERS

MODEL ENCODING

Technical drawings

Typical applications

Downloads

Datasheet1

Certificates5

Catalogues1

FAQ

Payment & Security

Other HLG-120H Models

Write a review

Your cart

Mean Well HLG-120H-12B Power Supply 120W 12V - Dimmable 10A

Features

Typical applications

Company Information

Services and Support

Choose options