Mean Well HLG-320H-20AB Power Supply 300W 20V - Adjustable and Dimmable - HLG Series

The HLG-320H is a 300W Mean Well AC-DC LED driver (input: 90~305VAC, output: 20V, operating temperature: -40~+90°C).

Key Features

✓ Input voltage: 90~305VAC
✓ Output voltage: 20V
✓ Rated output current: 15A
✓ 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-20AB with a 1-10V dimmer to control high-power 20V LED strip installations?

Yes. The HLG-320H-20AB accepts 1-10V and PWM dimming signals and delivers up to 300W at 20V, so you can pair with a wall dimmer or automation controller to smoothly adjust brightness on large 20V LED strip runs. The built-in potentiometer also lets you set the maximum output level.

Is the HLG-320H-20AB suitable for powering 20V LED channel-letter signage with dimming control?

Yes. At 300W and 20V output with 1-10V/PWM dimming input, it can drive large 20V channel-letter or cabinet sign arrays while allowing brightness scheduling. Its wide 90-305VAC input handles most commercial mains voltages worldwide.

Can the HLG-320H-20AB power a smart-home controlled 20V LED lighting system?

Yes. The dimming input (1-10V/PWM) can be driven by most smart-home controllers or building automation systems. With 300W at 20V and an adjustable output potentiometer, you get both automated dimming and manual fine-tuning of the drive level.

How many meters of 20V LED strip can the HLG-320H-20AB power?

Divide 300W by your strip's rated power per meter. For example, a strip drawing 14W/m allows up to about 21.4 meters (300W / 14W per meter). Always check your strip's rated power per meter and keep the total load at or below 300W.

Can the HLG-320H-20AB be installed in a sheltered outdoor location like a soffit or canopy?

Yes. Its IP65 water-resistant rating protects against dust and low-pressure water jets, making it suitable for covered outdoor areas such as soffits, canopies, and awnings. For fully exposed rain installations, the IP67-rated HLG-320H-20B is a better choice.

What is the operating temperature range of the HLG-320H-20AB for outdoor use?

The HLG-320H-20AB operates from -40°C to +90°C, covering extreme cold and hot climates. This wide range means it can be deployed in freezing northern winters or hot desert summers without derating under most real-world conditions.

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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: 20V

✓ Rated output current: 15A

✓ 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-20AB Power Supply 300W 20V - Adjustable and Dimmable 15A

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Mean Well HLG-320H-20AB Power Supply 300W 20V - Adjustable and Dimmable 15A

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