Mean Well HLG-320H-48A Power Supply | Adjustable 320W 48V

Name: Mean Well HLG-320H-48A Power Supply 320W 48V - Adjustable 6.7A
Brand: Mean Well
SKU: HLG-320H-48A
Price: 100.02 USD
Availability: InStock

Overview

HLG-320H-48A is the 48V output model of this series: rated current 6.7A, rated power 321.6W, typical efficiency 95%.

HLG-320H series is a 320W AC/DC LED driver featuring the dual mode constant voltage and constant current output. HLG-320H operates from 90～305VAC and offers models with different rated voltage ranging between 12V and 54V. 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-320H 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 rating for indoor or outdoor installations
Function options: output adjustable via potentiometer; 3 in 1 dimming
Typical lifettime > 62000 hours
7 years warranty

Specifications

HLG-320H-48ASpecifications from the official datasheet (2026-02-04 edition)

OUTPUT

DC VOLTAGE: 48V
CONSTANT CURRENT REGION^Note.4: 24 ~ 48V
RATED CURRENT: 6.7A
RATED POWER: 321.6W
RIPPLE & NOISE (max.)^Note.2: 250mVp-p
VOLTAGE ADJ. RANGE: 43 ~ 52V
CURRENT ADJ. RANGE: 3.35 ~ 6.7A
VOLTAGE TOLERANCE^Note.3: ±1.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±0.5%
SETUP, RISE TIME^Note.6: 2500ms,80ms/115VAC 600ms,80ms/230VAC
HOLD UP TIME (Typ.): 15ms / 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≧0.94/277VAC @ 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.) (230Vac): 95%
EFFICIENCY (Typ.) (277Vac): 95%
AC CURRENT (Typ.): 3.5A / 115VAC 1.65A / 230VAC 1.45A / 277VAC
INRUSH CURRENT(Typ.): COLD START 70A(twidth=1010μs measured at 50% Ipeak) at 230VAC; Per NEMA 410
MAX. No. of PSUs on 16A CIRCUIT BREAKER: 1 unit (circuit breaker of type B) / 2 units (circuit breaker of type C) at 230VAC
LEAKAGE CURRENT: <0.75mA / 277VAC

PROTECTION

OVER CURRENT^Note.4: 95 ~ 108% Constant current limiting, recovers automatically after fault condition is removed
SHORT CIRCUIT: Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE: 53.5 ~ 60V
OVER TEMPERATURE: Shut down and latch off o/p voltage, re-power on to recover

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
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: UL8750(type”HL”), CSA C22.2 No. 250.0-08; BS EN/EN/AS/NZS 61347-1, BS EN/EN/AS/NZS 61347-2-13 independent; GB/T19510.1,GB/T19510.213; IP65 or IP67 (except for HLG-320H C-type); J61347-1, J61347-2-13 (except for C-type), EAC TP TC 004;KC61347-1,KC61347-2-13(except for AB,C-type), BIS IS 15885(Part2/Sec13) (NOTE 13) 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/EN55032 (CISPR32) 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
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

OTHERS

MTBF: 1702.2K hrs min. Telcordia SR-332 (Bellcore) ; 157.2K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 252*90*43.8mm (L*W*H)
PACKING: 1.88Kg; 8pcs/16Kg/0.92CUFT

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. 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. BIS certification is for HLG-320H-A only, but products sourced from Taiwan do not have the BIS logo, please contact your MEAN WELL sales for more information.
14. For A/AB type need to consider build in using to comply with Type HL application.

Technical drawings

HLG-320H-48A BLOCK DIAGRAM — BLOCK DIAGRAM

HLG-320H-48A DIMMING OPERATION — DIMMING OPERATION

HLG-320H-48A Illustration (page 5) — Illustration (page 5)

HLG-320H-48A OUTPUT LOAD vs TEMPERATURE(Note.10) — OUTPUT LOAD vs TEMPERATURE(Note.10)

HLG-320H-48A STATIC CHARACTERISTICS — STATIC CHARACTERISTICS

HLG-320H-48A TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

HLG-320H-48A MECHANICAL SPECIFICATION — MECHANICAL SPECIFICATION

HLG-320H-48A 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

Certificates5

CB Certificate (HLG-320H)(EN) PDF Download

TUV Certificate (HLG-320H)(EN) PDF Download

EMC Certificate(HLG-320H)(EN) PDF Download

UL Certificate(HLG-320H)(EN) PDF Download

PSE Certificate(HLG-320H)(EN) PDF Download

Test reports1

Test Report (HLG-320H-48)(EN) PDF Download

Catalogues1

Mean Well LED Driver Catalog PDF Download

FAQ

Can I use the HLG-320H-48A for 48V LED strip lighting in a semi-exposed outdoor area?

Yes. The HLG-320H-48A delivers 48V at up to 6.7A (320W), and the HLG-320H series is rated IP65 or IP67 depending on type with a metal housing designed for indoor and outdoor use, making it appropriate for covered patios, canopy-mounted strips, or soffit lighting. Check the A-type's rating before a fully rain-exposed installation.

Is the adjustable output on the HLG-320H-48A helpful for fine-tuning LED fixture brightness?

Yes. The built-in potentiometers let you trim the output voltage (43-52V) and current (3.35-6.7A). This is useful for matching the driver precisely to your LED load or slightly reducing output to lower brightness without adding an external dimmer.

Can the HLG-320H-48A power 48V LED grow lights in a greenhouse?

Yes. At 320W and 48V it has ample capacity for horticultural LED fixtures. The adjustable output lets you match the driver to the exact fixture requirements, and the series' IP65/IP67-rated metal housing suits greenhouse installations. Its wide 90-305VAC input accommodates varying mains voltages.

Can I use the HLG-320H-48A for 48V architectural LED cove lighting?

Yes. The 320W capacity at 48V handles long runs of cove lighting, and the built-in potentiometer allows you to trim the output to precisely match the fixture string voltage. The IP65/IP67-rated metal housing suits interior cove or recessed installations where dust protection matters.

How many meters of 48V LED strip can the HLG-320H-48A handle?

Divide 320W by your strip's power consumption per meter. For instance, a 48V strip rated at 16W/m would allow about 20 meters (320W / 16W per meter = 20m). Always check your strip's rated power per meter and keep total load at or below 320W.

Is the HLG-320H-48A appropriate for a damp basement or indoor car wash installation?

The HLG-320H series is rated IP65 or IP67 depending on type, and its metal housing is designed for indoor and outdoor applications, which suits damp basements. For car washes, standing water, or submersion risk, the datasheet gives no wash-down rating, so check the A-type's rating and MEAN WELL's IP installation cautions first.

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Mean Well HLG-320H-48A Power Supply 320W 48V - Adjustable 6.7A

Overview

Features

Specifications

OUTPUT

INPUT

PROTECTION

ENVIRONMENT

SAFETY & EMC

OTHERS

Technical drawings

Typical applications

Downloads

Certificates5

Test reports1

Catalogues1

FAQ

Payment & Security

Your cart

Mean Well HLG-320H-48A Power Supply 320W 48V - Adjustable 6.7A

Features

Typical applications

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