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Mean Well LPF-40D-12 Power Supply 40W 12V - Dimmable

fully isolated plastic case, IP67, Class II design without FG, built-in 3 in 1 dimming

SKU:

LPF-40D-12

Model

16W 12V

SKU: LPF-16-12

16W 12V Dimmable

SKU: LPF-16D-12

25W 12V

SKU: LPF-25-12

25W 12V Dimmable

SKU: LPF-25D-12

40W 12V

SKU: LPF-40-12

40W 12V Dimmable

SKU: LPF-40D-12

60W 12V

SKU: LPF-60-12

60W 12V Dimmable

SKU: LPF-60D-12

Product variants

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Description

Features

Universal AC input (up to 305VAC) / Full range

Built-in active PFC function

Fully isolated plastic case

Built-in 3 in 1 dimming function (1~10VDC, PWM signal or resistance) for D type

Fully encapsulated with IP67 level

Class 2 power unit / Pass LPS

Isolation class II, no F.G.

Protections: Short circuit / Over current / Over voltage / Over temperature

Suitable for LED lighting and moving sign applications

Suitable for dry, damp, and wet location

Cooling by free air convection

5 years warranty

General Specification

AC input voltage range	90~305VAC ; 127~431VDC
AC inrush current (max.)	Cold start, 50A
Over current protection	95% ~108% constant current, auto-recovery
Over voltage protection	110%~150% rated output voltage
Withstand voltage	I/P - O/P: 3.75kVAC
Working temperature	-40~+70ºC (refer to output derating curve)
Safety standards	UL8750, ENEC EN61347-1, EN61347-2-13, EN62384, PSE J61347-1, J61347-2-13 approved for LPF-16(D)/25(D); UL8750, TUV EN61347-1, EN61347-2-13, PSE J61347-1, J61347-2-13 approved for LPF-40(D)/60(D)/90(D)
EMC standards	EN55015, EN61547, EN61000-3-2 class C, EN61000-3-3, EN61000-4-2, 3, 4, 5, 6, 8, 11
Connection Input	UL rated, SJTW 18AWGx2C (30cm)
Connection Output	18AWGx2C(30cm)+22AWGx2C (30cm)
Dimension (LxWxH)(mm)	162.5x 43x 32

Specifications

Brand

Mean Well
Series

LPF Series
Power Rating

40.08 Watt
Output Voltage

12 Volt
Rated Current

3.34 Ampere
Input Voltage

90V~305V
Standards Met

CB,CE,EAC,ENEC,PSE,TUV,UL
Operation Mode

Constant Current,Constant Voltage
Operating Temperature

-40°C~80°C
Warranty

5 Year
Length

16.25 cm
Width

4.3 cm
Height

3.2 cm
Weight

0.45 kg

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Frequently Asked Questions

Can I use the LPF-40D-12 for 12V LED strip lighting?

Yes, if the strip is a 12V constant-current load that operates within this driver’s 7-12V constant-current range. The LPF-40D-12 delivers up to 40.08W at 12V and 3.34A, and it includes built-in 3 in 1 dimming.

Is the LPF-40D-12 suitable for dimmable 12V display or signage lighting?

It can be used for 12V constant-current signage or display lighting loads that stay within 3.34A and 40.08W. This model also has built-in 3 in 1 dimming, which makes it suitable when dimming is required from the driver side.

Can this driver be used for 12V wet-location accent lighting?

Yes, for 12V constant-current accent lighting loads within its 7-12V range. The IP67 Waterproof rating supports use in wet or outdoor environments, and the operating temperature range is -40°C to +80°C.

How much 12V LED strip can the LPF-40D-12 support?

Use the driver’s 40.08W maximum output as the limit. Estimated strip length = 40.08W divided by your strip’s rated watts per meter, so check your strip rated power per meter before sizing the run.

Is the LPF-40D-12 waterproof enough for outdoor use?

Yes, it is rated IP67 Waterproof for wet or outdoor locations where that enclosure level is needed. The unit is also specified for operation from -40°C to +80°C.

How does the LPF-40D-12 compare with other dimmable 12V LPF models?

The dimmable 12V LPF siblings are LPF-16D-12 at 16.08W and 1.34A, LPF-25D-12 at 25.2W and 2.1A, LPF-40D-12 at 40.08W and 3.34A, and LPF-60D-12 at 60W and 5A. Compared with the non-dimmable LPF-40-12, this model keeps the same 40.08W, 12V, and 3.34A rating but adds built-in 3 in 1 dimming.

Model	Power	Voltage	Current	IP Rating
Mean Well LPF-40D-24 Power Supply 40W 24V - Dimmable	40.08W	24V	1.67A	IP67	View
Mean Well LPF-40D-15 Power Supply 40W 15V - Dimmable	40.08W	15V	2.67A	IP67	View
Mean Well LPF-40D-54 Power Supply 40W 54V - Dimmable	41.04W	54V	0.76A	IP67	View
Mean Well LPF-40D-48 Power Supply 40W 48V - Dimmable	40.32W	48V	0.84A	IP67	View
Mean Well LPF-40D-42 Power Supply 40W 42V - Dimmable	40.32W	42V	0.96A	IP67	View
Mean Well LPF-40D-36 Power Supply 40W 36V - Dimmable	40.32W	36V	1.12A	IP67	View
Mean Well LPF-40D-30 Power Supply 40W 30V - Dimmable	40.2W	30V	1.34A	IP67	View
Mean Well LPF-40D-20 Power Supply 40W 20V - Dimmable	40W	20V	2A	IP67	View

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