Mean Well HLG-320H-42AB Power Supply 320W 42V - Adjustable and Dimmable

The HLG-320H is a 320W Mean Well AC-DC LED driver (input: 90~305VAC, output: 42V, operating temperature: -40~+90°C).

Key Features

✓ Input voltage: 90~305VAC
✓ Output voltage: 42V
✓ Rated output current: 7.65A
✓ Ingress protection: IP65
✓ Operating temperature: -40~+90°C
✓ Safety certifications: CB, CCC, CE, EAC, PSE, RCM, TÜV, UL
✓ 7 year warranty

Frequently Asked Questions

Can I use the HLG-320H-42AB to power 42V LED strip lighting in a covered outdoor area?

Yes. The HLG-320H-42AB delivers 42V at up to 7.65A (320W) with an IP65 water-resistant rating, making it well suited for covered patios, canopies, or soffits where splashing water may occur. For fully exposed rain installations, consider the IP67-rated HLG-320H-42B instead.

Is the HLG-320H-42AB a good choice for powering high-output 42V LED signage?

Yes. With 320W at 42V, the HLG-320H-42AB can drive large 42V LED sign modules or channel-letter arrays. The built-in dimming input lets you reduce sign brightness during off-peak hours, and the adjustable output helps match the driver precisely to the module string voltage.

Can I dim the HLG-320H-42AB with a 1-10V or PWM signal?

Yes. The AB suffix indicates this model accepts 1-10V analog and PWM dimming signals. This makes it suitable for applications where you need external brightness control, such as architectural lighting scenes or daylight-responsive signage installations.

Can the HLG-320H-42AB drive 42V LED high-bay fixtures in a warehouse?

Yes. At 320W it has enough capacity for high-bay LED fixtures running at 42V. The adjustable output lets you fine-tune voltage and current to the fixture requirements, and the dimming input allows occupancy-sensor or daylight-harvesting integration. Its wide 90-305VAC input handles most industrial mains supplies.

How many meters of 42V LED strip can the HLG-320H-42AB power?

Divide 320W by your strip's rated power per meter. For example, a 42V strip drawing 14W/m would allow about 22.8 meters (320W / 14W per meter). Always check your strip's rated power per meter and keep total load at or below 320W.

Is the HLG-320H-42AB suitable for damp indoor environments like a parking garage?

Yes. Its IP65 rating protects against low-pressure water jets and dust ingress, which is more than adequate for parking garages, wash-down zones, or covered loading docks. For locations with standing water or direct rain exposure, the IP67 HLG-320H-42B is a better fit.

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Model	Power	Voltage	Current	IP Rating
Mean Well S-HLG-320H-24 Power Supply 320W 24V with AU/NZ plug 13.34A	320W	24V	13.34A	IP67	View
Mean Well HLG-320H-24A Power Supply 320W 24V - Adjustable 13.34A	320W	24V	13.34A	IP65	View
Mean Well S-HLG-320H-12 Power Supply 264W 12V with AU/NZ plug 22A	264W	12V	22A	IP67	View
Mean Well HLG-320H-48A Power Supply 320W 48V - Adjustable 6.7A	320W	48V	6.7A	IP65	View
Mean Well HLG-320H-48 Power Supply 320W 48V 6.7A	320W	48V	6.7A	IP67	View
Mean Well HLG-320H-24 Power Supply 320W 24V 13.34A	320W	24V	13.34A	IP67	View
Mean Well HLG-320H-12 Power Supply 264W 12V 22A	264W	12V	22A	IP67	View
Mean Well HLG-320H-24B Power Supply 320W 24V- Dimmable 13.34A	320W	24V	13.34A	IP67	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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Key Features

✓ Input voltage: 90~305VAC

✓ Output voltage: 42V

✓ Rated output current: 7.65A

✓ Ingress protection: IP65

✓ Operating temperature: -40~+90°C

✓ Safety certifications: CB, CCC, CE, EAC, PSE, RCM, TÜV, UL

✓ 7 year warranty

Mean Well HLG-320H-42AB Power Supply 320W 42V - Adjustable and Dimmable 7.65A

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Mean Well HLG-320H-42AB Power Supply 320W 42V - Adjustable and Dimmable 7.65A

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