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Mean Well HLG-40H-54AB Power Supply 40W 54V - Adjustable and Dimmable
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Mean Well HLG-40H-54AB Power Supply 40W 54V - Adjustable and Dimmable
The HLG-40H is a 40W 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: Note.8 SAFETY & EMC
- ✓ 3 years warranty
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BrandMean Well
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SeriesHLG Series
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Power Rating40 Watt
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Output Voltage54 Volt
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Rated Current0.75 Ampere
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Input Voltage90V~305V
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No of Output1
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Dimming Control10V PWM,1-10V,Built-in Potentiometer,Resistance
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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~80°C
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Warranty7 Year
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Length6.73 in
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Width2.42 in
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Height1.45 in
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Weight1.61 lb
::specification::
Frequently Asked Questions
Can I use the HLG-40H-54AB with a building automation system to control 54V LED lighting?
Yes. The AB suffix means it accepts 1-10V, PWM, or resistance dimming signals, making it compatible with most building automation and lighting control systems. The built-in potentiometer also lets you set a baseline output level independently of the automation signal.
Is the HLG-40H-54AB suitable for dimmable 54V accent lighting in a hospitality setting?
Yes. At 40W and 54V with both adjustable output and dimming input, it works well for small-scale accent lighting in hotels, restaurants, or lobbies where 54V LED fixtures need precise brightness control. The adjustable output helps match the driver to specific fixture requirements.
Can the HLG-40H-54AB drive 54V LED linear lights in a museum or gallery?
Yes, provided the total fixture load stays within 40W. The combination of output adjustment and dimming input gives precise control over light levels, which is important for artifact preservation and visitor experience. The constant-current mode with a 32-54V range accommodates different LED forward voltages.
How many meters of 54V LED strip can the HLG-40H-54AB support?
Divide 40W by your strip's rated power per meter. For example, a strip rated at 5W/m would allow up to 8 meters (40W / 5W per meter = 8m). Always verify your strip's actual power consumption per meter and keep total load at or below 40W.
Can the HLG-40H-54AB be mounted in a semi-outdoor location like a covered porch?
Yes. Its IP65 water-resistant rating protects against dust and splashing water, making it suitable for covered porches, patios, and soffits. For fully exposed outdoor locations with heavy rain or potential flooding, the IP67-rated HLG-40H-54B is a better choice.
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Other HLG-40H Models
6 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well HLG-40H-12B Power Supply 40W 12V - Dimmable | 40W | 12V | 3.33A | IP67 | $38.39 | View |
| Mean Well HLG-40H-24B Power Supply 40W 24V - Dimmable | 40W | 24V | 1.67A | IP67 | $33.90 | View |
| Mean Well HLG-40H-24A Power Supply 40W 24V - Adjustable | 40W | 24V | 1.67A | IP65 | $37.32 | View |
| Mean Well HLG-40H-12 Power Supply 40W 12V | 40W | 12V | 3.33A | IP67 | $34.41 | View |
| Mean Well HLG-40H-15B Power Supply 40W 15V - Dimmable | 40.5W | 15V | 2.67A | IP67 | $35.33 | View |
| Mean Well HLG-40H-15A Power Supply 40W 15V - Adjustable | 40W | 15V | 2.67A | IP65 | $37.32 | View |
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