Is the NPF-40-12 rated for outdoor or wet-location use?

Yes. The NPF-40-12 carries an IP67 rating and operates from -40°C to +85°C. Its compact 150.0 × 53.0 × 35.0 mm sealed plastic housing can be mounted directly inside outdoor fixtures, landscape lighting enclosures, or exposed industrial enclosures without additional weatherproof housing.

What 12V LED applications is the NPF-40-12 suited for?

The NPF-40-12 outputs 12V DC at 3.34A (40.08W) in constant-current mode with a CC range of 7–12V. It suits smaller 12V LED projects including low-power signage modules, embedded machine-vision lighting, under-cabinet LED strips, and compact architectural accent fixtures where 40W of 12V constant-current drive is sufficient.

How does the NPF-40-12 compare to the NPF-120-12 and NPF-200-12?

All three output 12V and carry IP67 and Class II design. NPF-40-12 is 40.08W at 3.34A in a 150.0 × 53.0 × 35.0 mm housing (0.49 kg). NPF-120-12 is 120W at 10A in a 191.0 × 63.0 × 37.5 mm housing (0.97 kg). NPF-200-12 is 200W at 15A in a 195.0 × 68.0 × 39.5 mm housing (1.03 kg). The NPF-40-12 is the lightest and most compact option for lower-power 12V loads.

What input voltage range does the NPF-40-12 accept?

The NPF-40-12 accepts 90–305VAC, which covers 120VAC North American mains, 230VAC European mains, and most industrial supply voltages worldwide. No voltage selector switch or external transformer is required.

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Image shown is a representation only. Exact specifications should be obtained from the product datasheet.

Mean Well

Mean Well NPF-40-12 Power Supply 40W 12V

Name: Mean Well NPF-40-12 Power Supply 40W 12V
Brand: Mean Well
SKU: NPF-40-12
Price: 30.42 USD
Availability: InStock

fully isolated plastic caseIP67Class II design without FG

SKU:

NPF-40-12

$30.42 USD ~~$96.00~~

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The NPF-40 is a 40W Mean Well power converter (input range: 90~305VAC).

Key Features

✓ Input voltage range: 90~305VAC
✓ 3.75KVAC reinforced I/O isolation
✓ Protections: Short circuit / Over voltage / Over temperature
✓ Active PFC — meets international energy efficiency regulations
✓ Safety approvals: Note.8 SAFETY & EMC
✓ 3 years warranty

Brand

Mean Well
Series

NPF Series
Power Rating

40.08 Watt
Output Voltage

12 Volt
Rated Current

3.34 Ampere
Input Voltage

90V~305V
No of Output

1
Dimming Control

None
Standards Met

CB,CCC,CE,EAC,ENEC,UL
Operation Mode

Constant Current,Constant Voltage
Operating Temperature

-40°C~85°C
Warranty

5 Year
Length

5.91 in
Width

2.09 in
Height

1.38 in
Weight

1.08 lb

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Model	Power	Voltage	Current	IP Rating	Price
Mean Well NPF-40-54 Power Supply 40W 54V	41.04W	54V	0.76A	IP67	$28.04	View
Mean Well NPF-40-48 Power Supply 40W 48V	40.32W	48V	0.84A	IP67	$27.13	View
Mean Well NPF-40-42 Power Supply 40W 42V	40.32W	42V	0.96A	IP67	$28.04	View
Mean Well NPF-40-36 Power Supply 40W 36V	40.32W	36V	1.12A	IP67	$28.04	View
Mean Well NPF-40-30 Power Supply 40W 30V	40.2W	30V	1.34A	IP67	$28.04	View

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Mean Well