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.

1 5

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~~

Shipping calculated at checkout.

Notify me when it's back in stock

Your order will be processed within 24 hours

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

Payment & Security

Payment methods

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

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

Mean Well