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Mean Well

Mean Well LPF-40-24 Power Supply 40W 24V 1.67A

fully isolated plastic caseIP67Class II design without FG
SKU LPF-40-24
$34.98 USD
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Select model — 10 in this family

LPF-40-24
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Overview

LPF-40-24 is the 24V output model of this series: rated current 1.67A, rated power 40.08W, typical efficiency 87%.

LPF-40 series is a 40W AC/DC LED driver featuring the dual modes constant voltage and constant current output. LPF-40 operates from 90~305VAC and offers models with different rated voltage ranging between 12V and 54V. Thanks to the high efficiency up to 90%, with the fanless design, the entire series is able to operate for -40℃ ~ +80℃ case temperature under free air convection. The entire series is rated with IP67 ingress protection level and is suitable to work for a variety of applications at dry, damp or wet locations.

Features

  • Constant Voltage + Constant Current mode output
  • Plastic housing with Class II design
  • Built-in active PFC function
  • Class 2 power unit
  • Fully encapsulated with IP67 level
  • Typical lifettime>50000 hours
  • 5 years warranty

Specifications

LPF-40-24Specifications from the official datasheet (2026-02-09 edition)

OUTPUT

DC VOLTAGE
24V
CONSTANT CURRENT REGIONNote.2
14.4 ~ 24V
RATED CURRENT
1.67A
RATED POWERNote.5
40.08W
RIPPLE & NOISE (max.)Note.3
150mVp-p
VOLTAGE TOLERANCENote.4
±4.0%
LINE REGULATION
±0.5%
LOAD REGULATION
±0.5%
SETUP, RISE TIMENote.6
1000ms, 80ms / 115VAC 500ms, 80ms / 230VAC
HOLD UP TIME (Typ.)
16ms/230VAC 16ms/115VAC

INPUT

VOLTAGE RANGENote.5
90 ~ 305VAC 127 ~ 431VDC (Please refer to "STATIC CHARACTERISTIC" section)
FREQUENCY RANGE
47 ~ 63Hz
POWER FACTOR
PF≧0.97/115VAC, 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%/115VC,230VAC; @load≧75%/277VAC) (Please refer to “TOTAL HARMONIC DISTORTION(THD)” section)
EFFICIENCY (Typ.)
87%
AC CURRENT
0.6A / 115VAC 0.3A / 230VAC 0.25A/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 / 240VAC

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
28 ~ 35V Shut down and latch off o/p voltage, re-power on to recover
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 ~ 50℃)
VIBRATION
10 ~ 500Hz, 5G 12min./1cycle, period for 72min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDSNote.8
UL8750, CSA C22.2 No. 250.0-08, ENEC BS EN/EN61347-1, BS EN/EN61347-2-13 independent, BS EN/EN62384, EAC TP TC 004 , IP67, J61347-1, J61347-2-13,GB/T19510.1,GB/T19510.213 approved ; design refer to UL60950-1
WITHSTAND VOLTAGE
I/P-O/P:3.75KVAC
ISOLATION RESISTANCE
I/P-O/P: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,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-Line 2KV), EAC TP TC 020

OTHERS

MTBF
3597.9K hrs min. Telcordia SR-332 (Bellcore) ; 438.9Khrs min. MIL-HDBK-217F (25℃)
DIMENSION
162.5*43*32mm (L*W*H)
PACKING
0.44Kg; 32pcs/15.08Kg/0.93CUFT
Test conditions and notes12
  1. 1. All parameters NOT specially mentioned are measured at 230VAC input, rated current and 25℃ of ambient temperature.
  2. 2. Please refer to "DRIVING METHODS OF LED MODULE".
  3. 3. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.
  4. 4. Tolerance : includes set up tolerance, line regulation and load regulation.
  5. 5. De-rating may be needed under low input voltages. Please refer to “STATIC CHARACTERISTIC” sections for details.
  6. 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. 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. 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. 9. This series meets the typical life expectancy of >50,000 hours of operation when Tcase, particularly tc point (or TMP, per DLC), is about 75℃ or less.
  10. 10. Please refer to the warranty statement on MEAN WELL's website at http://www.meanwell.com
  11. 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. 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

Technical drawings

LPF-40-24 BLOCK DIAGRAM
BLOCK DIAGRAM
LPF-40-24 OUTPUT LOAD vs TEMPERATURE
OUTPUT LOAD vs TEMPERATURE
LPF-40-24 STATIC CHARACTERISTIC
STATIC CHARACTERISTIC
LPF-40-24 TOTAL HARMONIC DISTORTION
TOTAL HARMONIC DISTORTION
LPF-40-24 LIFETIME(Kh)
LIFETIME(Kh)
LPF-40-24 MECHANICAL SPECIFICATION
MECHANICAL SPECIFICATION
LPF-40-24 Recommend Mounting Direction
Recommend Mounting Direction

Typical applications

  • LED panel lighting
  • LED downlight
  • LED decorative lighting
  • LED tunnel lighting
  • Moving sign

Downloads

FAQ

Can I use the LPF-40-24 for 24V LED strip lighting?

Yes, it can be used for 24V LED strip lighting when the strip's total load stays within 40.08W. This model outputs 24V at up to 1.67A, so the strip voltage must match 24V and total power must stay within the driver rating.

Is the LPF-40-24 suitable for 24V illuminated signs or channel lighting?

It is suitable for 24V sign or channel lighting products that draw no more than 40.08W in total. The IP67 Waterproof construction also makes it relevant for signage used in outdoor environments.

Can this driver be used for 24V outdoor landscape or facade lighting?

Yes, for 24V lighting loads up to 40.08W. The IP67 Waterproof rating and -40°C to +80°C case temperature (Tcase) range support use in wet outdoor conditions.

How do I size 24V LED strip length with the LPF-40-24?

Use this formula: 40.08W divided by your strip's rated watts per meter equals the maximum estimated length. Check your strip rated power per meter, confirm it is a 24V strip, and keep the total connected load at or below 40.08W.

Can the LPF-40-24 be mounted where rain or washdown is possible?

The driver is rated IP67 Waterproof, so it suits rain-exposed locations; MEAN WELL refers to its user manual for IP waterproof installation cautions. It is specified for a case temperature (Tcase) of -40°C to +80°C, so it is suited to outdoor environments when the rest of the system is equally rated.

What are the main differences between the LPF-40-24 and the other LPF-40 models?

The LPF-40 series spans 12V, 15V, 20V, 24V, 30V, 36V, 42V, 48V, and 54V outputs. Their corresponding ratings are 40.08W/3.34A, 40.08W/2.67A, 40W/2A, 40.08W/1.67A, 40.2W/1.34A, 40.32W/1.12A, 40.32W/0.96A, 40.32W/0.84A, and 41.04W/0.76A, so the correct choice depends on the output voltage and current your load requires.

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Mean Well LPF-40-24 Power Supply 40W 24V 1.67A
Mean Well

Mean Well LPF-40-24 Power Supply 40W 24V 1.67A

$34.98 USD

LPF-40-24 is the 24V output model of this series: rated current 1.67A, rated power 40.08W, typical efficiency 87%.

LPF-40 series is a 40W AC/DC LED driver featuring the dual modes constant voltage and constant current output. LPF-40 operates from 90~305VAC and offers models with different rated voltage ranging between 12V and 54V. Thanks to the high efficiency up to 90%, with the fanless design, the entire series is able to operate for -40℃ ~ +80℃ case temperature under free air convection. The entire series is rated with IP67 ingress protection level and is suitable to work for a variety of applications at dry, damp or wet locations.

Features

  • Constant Voltage + Constant Current mode output
  • Plastic housing with Class II design
  • Built-in active PFC function
  • Class 2 power unit
  • Fully encapsulated with IP67 level
  • Typical lifettime>50000 hours
  • 5 years warranty

Typical applications

  • LED panel lighting
  • LED downlight
  • LED decorative lighting
  • LED tunnel lighting
  • Moving sign

Model

  • 16W 24V
  • 16W 24V Dimmable
  • 25W 24V
  • 25W 24V Dimmable
  • 40W 24V
  • 40W 24V Dimmable
  • 60W 24V
  • 60W 24V Dimmable
  • 90W 24V
  • 90W 24V Dimmable
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