Mean Well HLG-480H-24B 480W 24V Dimmable Power Supply | Constant Voltage + Constant Current LED Driver

Name: Mean Well HLG-480H-24B Power Supply 480W 24V- Dimmable 20A
Brand: Mean Well
SKU: HLG-480H-24B
Price: 153.39 USD
Availability: InStock

Overview

HLG-480H-24B is the 24V output model of this series: rated current 20A, rated power 480W, typical efficiency 94%.

HLG-480H series is a 480W AC/DC LED driver featuring the dual mode constant voltage and constant current output. HLG-480H operates from 90～305VAC and offers models with different rated voltage ranging between 24V and 54V. Thanks to the high efficiency up to 95.5%, 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-480H 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 / IP65 design for indoor or outdoor installations
Function options: output adjustable via potentiometer; 3 in 1 dimming (dim-to-off, isolated design) ; smart timer dimming; junction box
Typical lifettime > 62000 hours
7 years warranty (Note.9)

Specifications

HLG-480H-24BSpecifications from the official datasheet (2026-02-04 edition)

OUTPUT

DC VOLTAGE: 24V
CONSTANT CURRENT REGION^Note.4: 12 ~ 24V
RATED CURRENT: 20A
RATED POWER: 480W
RIPPLE & NOISE (max.)^Note.2: 200mVp-p
VOLTAGE ADJ. RANGE: Adjustable for A/AB-Type only (via built-in potentiometer) 20.4 ~ 25.2V
CURRENT ADJ. RANGE: Adjustable for A/AB-Type only (via built-in potentiometer) 10 ~ 20A
VOLTAGE TOLERANCE^Note.3: ±1.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±0.5%
SETUP, RISE TIME^Note.6: 500ms, 80ms 115VAC/230VAC
HOLD UP TIME (Typ.): 16ms 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≧0.97/230VAC, PF≧0.95/277VAC @ full load (Please refer to "POWER FACTOR (PF) CHARACTERISTIC" section)
TOTAL HARMONIC DISTORTION: THD< 20% (@ load≧40% / 115VAC,230VAC,277VAC) (Please refer to "TOTAL HARMONIC DISTORTION (THD)" section)
EFFICIENCY (Typ.) 230VAC: 94%
EFFICIENCY (Typ.) 277VAC: 94.5%
AC CURRENT (Typ.): 5A / 115VAC 2.45A / 230VAC 2A / 277VAC
INRUSH CURRENT(Typ.): COLD START 35A(twidth=1800μs measured at 50% Ipeak) at 230VAC; Per NEMA 410
LEAKAGE CURRENT: <0.75mA / 277VAC
MAX. NO. of PSUs on 16A CIRCUIT BREAKER: 2unit(circuit breaker of type B) / 3units(circuit breaker of type C) at 230VAC

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: 27 ~ 33V Shut down output voltage, re-power on to recovery
OVER TEMPERATURE: Shut down output voltage, re-power on to recovery

ENVIRONMENT

WORKING TEMP.: Tcase= -40 ~ +90℃ (Please refer to "OUTPUT LOAD vs TEMPERATURE" section)
MAX. CASE TEMP.: Tcase= +90℃
WORKING HUMIDITY: 20 ~ 95% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +80℃, 10 ~ 95% RH non-condensing
TEMP. COEFFICIENT: ±0.02%/℃ (0 ~ 60℃)
VIBRATION: 10 ~ 500Hz, 5G 12min./1cycle, period for 72min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDS: UL8750(type"HL"), CSA C22.2 No. 250.13-12; ENEC BS EN/EN61347-1, BS EN/EN61347-2-13 independent, BS EN/EN62384; GB/T19510.1,GB/T19510.213;IP65 or IP67, EAC TP TC 004,AS/NZS IEC 61347.2.13:2013,AS/NZS 61347.1:2016;KC61347-1, KC61347-2-13(except for AB,Dx type), J61347-1(H29), J61347-2-13(H29)(except for Dx 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: 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;KC KN15,KN61547(except for AB,Dx type),J55015(H29)(for Blank/A-type)
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 ;KC KN15,KN61547( except for AB,Dx type ),J55015(H29)(for Blank/A-type)

OTHERS

MTBF: 1185.9K hrs min. Telcordia SR-332(Bellcore) ; 95.4K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 262*125*43.8mm (L*W*H)
PACKING: 2.8Kg;4pcs/12.2Kg/0.55CUFT

Test conditions and notes13

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. 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.
10. Please refer to the warranty statement on MEAN WELL's website at http://www.meanwell.com
11. 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).
12. 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
13. For A/AB type need to consider build in using to comply with Type HL application.

Technical drawings

HLG-480H-24B BLOCK DIAGRAM — BLOCK DIAGRAM

HLG-480H-24B DIMMING OPERATION — DIMMING OPERATION

HLG-480H-24B Outputcurrent(%) — Outputcurrent(%)

HLG-480H-24B ◎ Applying additive resistance — ◎ Applying additive resistance

HLG-480H-24B ※ Smart timer dimming function (for Dxx-Type by User… — ※ Smart timer dimming function (for Dxx-Type by User…

Ex: ◎ D02-Type: the profile recommended for street lighting

Ex: ◎ D03-Type: the profile recommended for tunnel lighting

HLG-480H-24B OUTPUT LOAD vs TEMPERATURE(Note.10) — OUTPUT LOAD vs TEMPERATURE(Note.10)

HLG-480H-24B STATIC CHARACTERISTICS — STATIC CHARACTERISTICS

HLG-480H-24B TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

HLG-480H-24B LIFETIME(Kh) — LIFETIME(Kh)

HLG-480H-24B MECHANICAL SPECIFICATION — MECHANICAL SPECIFICATION

Typical applications

LED Harboure
LED greenhouse lighting
LED statium lighting
LED mining lighting
Type "HL" for use in ClassⅠ,Division 2 hazardous(Classified) location

Downloads

Certificates10

Mean Well HLG-480H PSE Certificate PDF Download

Mean Well HLG-480H KC Certificate PDF Download

Mean Well HLG-480H GlobalMark Certificate PDF Download

Mean Well HLG-480H ENEC Certificate PDF Download

Mean Well HLG-480H CCC Certificate PDF Download

Mean Well HLG-480H CB Certificate PDF Download

Mean Well HLG-480H EMC Certificate PDF Download

Mean Well HLG-480H CE Certificate PDF Download

Mean Well HLG-480H UK Certificate PDF Download

Mean Well IDLC Series UL Certificate PDF Download

Test reports1

Mean Well HLG-480H-24 Test Report PDF Download

Catalogues1

Mean Well LED Driver Catalog PDF Download

FAQ

Can I use the HLG-480H-24B for large-scale outdoor 24V LED strip lighting with dimming?

Yes. The HLG-480H-24B provides 480W at 24V (20A) with a 3-in-1 dimming input (0-10VDC, 10V PWM or resistance) for brightness control. Its IP67 waterproof rating allows direct outdoor mounting even in locations exposed to rain, snow, or temporary water pooling, making it well-suited for building perimeter strips, parking structure lighting, or garden installations.

Is the HLG-480H-24B a good choice for powering 24V LED modules in a large outdoor sign?

Yes. With 480W of output at 24V and IP67 waterproofing, it can reliably drive high-wattage LED sign modules in fully exposed outdoor locations. The constant-current operating range of 12-24V accommodates module strings with varying forward voltage drops. The dimming input lets you reduce brightness for nighttime operation.

Can the HLG-480H-24B power 24V LED lighting in a commercial cold storage facility?

Yes. Its case temperature (Tcase) rating down to -40°C covers cold-storage and freezer environments. The IP67 waterproof rating protects against moisture and dust; note the working humidity is specified as 20-95% RH non-condensing. At 480W it can supply substantial 24V LED fixture loads commonly used in walk-in coolers and refrigerated display areas.

How many meters of 24V LED strip can the HLG-480H-24B drive?

Divide 480W by your strip's rated wattage per meter. For instance, a strip rated at 10W/m could run up to 48 meters (480W / 10W per meter = 48m). A denser strip at 19.2W/m would allow 25 meters. Always verify your strip's rated power per meter and keep total consumption at or below 480W.

Can the HLG-480H-24B be installed in a below-grade vault or wet junction box?

Yes, with care. IP67 means the enclosure can withstand temporary immersion in water up to 1 meter deep for 30 minutes, but it is not intended for permanent submersion, so avoid locations where it would sit in standing water. Its -40°C to +90°C case temperature (Tcase) range also covers extreme temperature environments, with derating at high ambient.

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Mean Well HLG-480H-24B Power Supply 480W 24V- Dimmable 20A

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Overview

Features

Specifications

OUTPUT

INPUT

PROTECTION

ENVIRONMENT

SAFETY & EMC

OTHERS

Technical drawings

Typical applications

Downloads

Certificates10

Test reports1

Catalogues1

FAQ

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Mean Well HLG-480H-24B Power Supply 480W 24V- Dimmable 20A

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