Can I use the HLG-40H-12AB for dimmable 12V LED under-cabinet lighting in a kitchen?

Yes. The HLG-40H-12AB outputs 12V at up to 3.33A (40W) and supports 1-10V, PWM, and resistance dimming. This makes it ideal for under-cabinet strips where you want smooth brightness control from a wall dimmer or smart home controller.

Is the HLG-40H-12AB a good choice for dimmable 12V cove lighting in a home theater?

Yes. The built-in dimming input allows integration with common 1-10V or PWM dimmers for scene-setting in home theaters, media rooms, or architectural cove details. The adjustable output also lets you fine-tune the voltage to match your specific LED strip.

Can the HLG-40H-12AB power a 12V LED light box with dimming control?

Yes. At 40W and 12V, it can drive a compact 12V lightbox while providing dimming via 1-10V, PWM, or resistance signal. The adjustable potentiometer lets you set the base output to match the exact load of your lightbox modules.

How many meters of 12V LED strip can the HLG-40H-12AB power?

Divide 40W by the strip's rated wattage per meter. For instance, a 12V strip rated at 10W/m could run up to 4 meters (40W / 10W per meter = 4m). Always check your strip's rated power per meter and keep total load at or below 40W.

Can the HLG-40H-12AB be used in a semi-enclosed outdoor soffit?

Yes. Its IP65 water-resistant rating protects against dust ingress and low-pressure water jets, making it suitable for sheltered outdoor locations such as soffits, eaves, or covered walkways. For direct rain exposure, consider the IP67-rated HLG-40H-12B instead.

Mean Well HLG-40H-12AB Power Supply 40W 12V - Adjustable and Dimmable

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The HLG-40H is a 40W Mean Well AC-DC LED driver (input: 90~305VAC, output: 12V, operating temperature: -40~+80°C).

Key Features

✓ Input voltage: 90~305VAC
✓ Output voltage: 12V
✓ Rated output current: 3.33A
✓ Ingress protection: IP65
✓ Operating temperature: -40~+80°C
✓ Safety certifications: CB, CCC, CE, EAC, PSE, RCM, TÜV, UL
✓ 7 year warranty

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Model	Power	Voltage	Current	IP Rating
Mean Well HLG-40H-24 Power Supply 40W 24V 1.67A	40W	24V	1.67A	IP67	View
Mean Well HLG-40H-24A Power Supply 40W 24V - Adjustable 1.67A	40W	24V	1.67A	IP65	View

Customer reviews

4.9 Reviews verified for authenticity

5 ★ (19)

4 ★ (2)

3 ★ (0)

2 ★ (0)

1 ★ (0)

Reviewed by 21 customers across the HLG series

Best outdoor driver we use
By Hemi K.|2026-06-22✓ Verified Buyer
Model: HLG-240H-24Quantity: 6
HLG-240H-24 is IP67 and just keeps going. Powering a car-park flood install, 8 months no issues.
Premium, worth it
By Bright Spark|2026-06-01✓ Verified Buyer
Model: HLG-185H-24Quantity: 4
Built-in PFC, runs cool, DALI option on the B model. Our go-to.
Flawless
By Olivia D.|2026-05-09✓ Verified Buyer
Model: HLG-320H-48Quantity: 2
Drove a 48V architectural run for months, dead silent.

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