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Mean Well HLG-40H-48AB Power Supply 40W 48V - Adjustable and Dimmab...
Overview
HLG-40H-48AB is the 48V output model of this series: rated current 0.84A, rated power 40.32W, typical efficiency 89.5%.
HLG-40H series is a 40W AC/DC LED driver featuring the dual mode constant voltage and constant current output. HLG-40H operates from 90～305VAC and offers models with different rated voltage ranging between 12V and 54V. Thanks to the high efficiency up to 89.5%, 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/IP65 ingress protection level allows this series to fit both indoor and outdoor applications. HLG-40H 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
- Class 2 power unit
- IP67 / IP65 rating for indoor or outdoor installations
- Function options: output adjustable via potentiometer; 3 in 1 dimming; Timer dimming
- Typical lifetime > 62000 hours
- 7 years warranty
Specifications
OUTPUT
- DC VOLTAGE
- 48V
- CONSTANT CURRENT REGIONNote.4
- 28.8 ~ 48V
- RATED CURRENT
- 0.84A
- RATED POWER
- 40.32W
- RIPPLE & NOISE (max.)Note.2
- 300mVp-p
- VOLTAGE ADJ. RANGE
- Adjustable for A/AB-Type only (via built-in potentiometer)
- VOLTAGE ADJ. RANGE
- 44 ~ 53V
- CURRENT ADJ. RANGE
- Adjustable for A/AB-Type only (via built-in potentiometer)
- CURRENT ADJ. RANGE
- 0.5 ~ 0.84A
- VOLTAGE TOLERANCENote.3
- ±1.0%
- LINE REGULATION
- ±0.5%
- LOAD REGULATION
- ±0.5%
- SETUP, RISE TIMENote.6
- 500ms,80ms/115VAC 500ms,80ms/230VAC
- HOLD UP TIME (Typ.)
- 16ms / 115VAC, 230VAC
INPUT
- VOLTAGE RANGENote.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≧0.92/277VAC @ full load (Please refer to "POWER FACTOR (PF) CHARACTERISTIC" section)
- TOTAL HARMONIC DISTORTION
- THD< 20% (@ load≧60% / 115VAC,230VAC; @ load≧75% / 277VAC) (Please refer to "TOTAL HARMONIC DISTORTION (THD)" section)
- EFFICIENCY (Typ.)
- 89.5%
- AC CURRENT (Typ.)
- 0.43A / 115VAC 0.24A / 230VAC 0.23A / 277VAC
- INRUSH CURRENT(Typ.)
- COLD START 50A(twidth=210μs measured at 50% Ipeak) at 230VAC; Per NEMA 410
- MAX. No. of PSUs on 16A CIRCUIT BREAKER
- 12 units (circuit breaker of type B) / 20 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
- Hiccup mode, recovers automatically after fault condition is removed
- OVER VOLTAGE
- 54 ~ 65V
- OVER TEMPERATURE
- Shut down o/p voltage, re-power on to recover
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 STANDARDSNote.8
- 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,EAC TP TC 004,KC61347-1,KC61347-2-13 (except for AB-type), IP65 or IP67 approved ; J61347-1 , J61347-2-13 ; design refer to BS EN/EN60335-1(by request)
- 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 EMISSIONNote.8
- Compliance to BS EN/EN55015, BS EN/EN61000-3-2 Class C (@ load≧60%) ; BS EN/EN61000-3-3,GB/T 17743 , GB17625.1, KS C 9815, KS C 9547, 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), KS C 9815, KS C 9547, EAC TP TC 020
OTHERS
- MTBF
- 3395.8K hrs min. Telcordia SR-332 (Bellcore) ; 345.8K hrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 171*61.5*36.8mm (L*W*H)
- PACKING
- 0.73Kg; 20pcs/15.6Kg/0.9CUFT
Certifications & ratings
- Type
- HL
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. For A/AB type need to consider build in using to comply with Type HL application.
- 14. 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
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
Test reports1
Catalogues1
FAQ
Can I use the HLG-40H-48AB to power 48V LED strip lighting in covered outdoor areas?
Yes. The HLG-40H-48AB outputs 48V at up to 0.84A (40W) and carries an IP65 water-resistant rating, making it suitable for covered patios, canopies, and soffits where splashing water or dust may be present. For fully rain-exposed locations, consider the IP67-rated HLG-40H-48B instead.
Is the HLG-40H-48AB a good driver for small 48V LED signage projects?
Yes. With 40W at 48V, it can power compact 48V LED sign modules or channel letters with low total wattage. The built-in dimming input lets you adjust brightness for day/night cycles, and the adjustable output helps fine-tune voltage to match specific module requirements.
Can I dim the HLG-40H-48AB using a 1-10V or PWM signal?
Yes. The AB suffix means it supports both output voltage/current adjustment via built-in potentiometer and external dimming via 1-10V, PWM, or resistance input. This makes it well suited for applications where you need both precise output trimming and remote brightness control.
How many meters of 48V LED strip can the HLG-40H-48AB drive?
Divide 40W by your strip's power per meter. For example, a 48V strip rated at 8W/m would allow up to 5 meters (40W / 8W per meter = 5m). Always check your strip's rated power per meter and keep the total load at or below 40W.
What is the difference between the HLG-40H-48, 48A, 48AB, and 48B models?
All four share the same 40W / 48V / 0.84A core specs. The base HLG-40H-48 has no adjustment or dimming and is IP67 waterproof. The -48A adds output voltage/current adjustment via potentiometer (IP65). The -48AB adds both adjustment and 1-10V/PWM dimming input (IP65). The -48B adds dimming input only and retains IP67.
Is the HLG-40H-48AB suitable for installation in a dusty warehouse or workshop?
Yes. Its IP65 rating provides complete protection against dust ingress and low-pressure water jets. The metal casing and -40°C to +80°C case temperature (Tcase) working range also make it durable in environments with temperature fluctuations and airborne particulates.
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