Over 15 years experience of providing support of MEAN WELL Power Supplies
Description
Description
The HLG-320H is a 320W Mean Well power converter (input range: 90~305VAC).
Key Features
- ✓ Input voltage range: 90~305VAC
- ✓ DC output voltage adjustable ±10%
- ✓ 3.75KVAC reinforced I/O isolation
- ✓ Cooling by free air convection
- ✓ Protections: Short circuit / Over voltage / Over temperature
- ✓ Active PFC — meets international energy efficiency regulations
- ✓ Safety approvals: SAFETY & EMC
- ✓ 3 years warranty
Specifications
Specifications
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BrandMean Well
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SeriesHLG Series
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Power Rating300 Watt
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Output Voltage20 Volt
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Rated Current15 Ampere
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Input Voltage90V~305V
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No of Output1
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Dimming ControlNone
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Standards MetCB,CCC,CE,EAC,PSE,RCM,TUV,UL
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Operation ModeConstant Current,Constant Voltage
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Operating Temperature-40°C~90°C
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Warranty7 Year
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Length9.92 in
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Width3.54 in
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Height1.72 in
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Weight4.14 lb
File Downloads
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Payment & Security
Payment methods
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Frequently Asked Questions
Can I use the HLG-320H-20 to power 20V LED modules in a large outdoor sign?
Yes. The HLG-320H-20 delivers 300W at 20V with up to 15A, sufficient for a large array of 20V LED sign modules. Its IP67 waterproof rating and wide 90-305VAC input make it reliable for outdoor signage exposed to weather and varying mains voltages across different regions.
Is the HLG-320H-20 suitable for powering 20V LED high-mast or area lights?
Yes. At 300W and 20V, it provides the high current (15A) needed for 20V high-mast LED fixtures or large area-light panels. The IP67 waterproof enclosure and -40°C to +90°C operating range ensure reliable performance in fully exposed pole-mounted or rooftop installations.
Can the HLG-320H-20 be used for 20V LED horticultural lighting in a greenhouse?
Yes, provided the grow lights operate at 20V and total draw does not exceed 300W. The constant-current mode with a CC range of 10-20V adapts to the varying forward voltage of LED horticultural panels as they heat up during long photoperiods.
How many watts of 20V LED load can the HLG-320H-20 handle?
The HLG-320H-20 supports up to 300W at 20V (15A). For example, if you have 20V LED fixtures rated at 60W each, you can power up to five fixtures (300W total). Always confirm each fixture's rated wattage and ensure the combined load does not exceed 300W.
Can the HLG-320H-20 be mounted outdoors without an additional weatherproof enclosure?
Yes. The IP67 waterproof rating means the aluminium enclosure is completely sealed against dust and can withstand temporary immersion in water up to 1 meter deep. No additional weatherproof housing is required for fully exposed outdoor installations.
What are the differences between the HLG-320H-20, 20A, 20AB, and 20B models?
All four share the same 300W / 20V / 15A core output. The base HLG-320H-20 has fixed output with no adjustment and is IP67 waterproof. The -20A adds a built-in potentiometer for voltage/current trimming and is IP65 water-resistant. The -20AB adds both the potentiometer and a 1-10V/PWM dimming input (IP65). The -20B has the dimming input only and retains IP67.
Other HLG-320H Models
9 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well HLG-320H-24 Power Supply 320W 24V | 320W | 24V | 13.34A | IP67 | $81.83 | View |
| Mean Well HLG-320H-12 Power Supply 264W 12V | 264W | 12V | 22A | IP67 | $78.41 | View |
| Mean Well HLG-320H-24B Power Supply 320W 24V- Dimmable | 320W | 24V | 13.34A | IP67 | $81.04 | View |
| Mean Well HLG-320H-12A Power Supply 264W 12V - Adjustable | 264W | 12V | 22A | IP65 | $75.82 | View |
| Mean Well HLG-320H-24A Power Supply 320W 24V - Adjustable | 320W | 24V | 13.34A | IP65 | $93.02 | View |
| Mean Well HLG-320H-48B Power Supply 320W 48V- Dimmable | 320W | 48V | 6.7A | IP67 | $81.04 | View |
| Mean Well HLG-320H-42A Power Supply 320W 42V - Adjustable | 320W | 42V | 7.65A | IP65 | $86.45 | View |
| Mean Well HLG-320H-54A Power Supply 320W 54V - Adjustable | 320W | 54V | 5.95A | IP65 | $93.02 | View |
| Mean Well HLG-320H-42B Power Supply 320W 42V- Dimmable | 320W | 42V | 7.65A | IP67 | $96.14 | View |
