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Mean Well HLG-40H-20AB Power Supply 40W 20V - Adjustable and Dimmable
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Mean Well HLG-40H-20AB Power Supply 40W 20V - 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 Voltage20 Volt
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Rated Current2 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-20AB with a 0-10V dimmer to control 20V LED strip brightness?
Yes. The HLG-40H-20AB supports dimming via 1-10V, PWM, and resistance signals, making it compatible with standard 0-10V dimmers. This lets you smoothly control brightness on 20V LED strips or modules up to a total load of 40W.
Is the HLG-40H-20AB suitable for dimmable 20V LED retail showcase lighting?
It is a strong choice for showcase lighting where both adjustable output and dimming are needed. The built-in potentiometer sets the baseline output, while the dimming input allows scene-based brightness control. At 40W and 20V output, it handles small to medium showcase LED arrays.
Can I power a dimmable 20V LED backlit menu board with the HLG-40H-20AB?
Yes, provided the menu board's LEDs draw 40W or less. The HLG-40H-20AB delivers 20V at up to 2A in constant-current mode and accepts dimming signals, letting you lower brightness during quieter hours or adjust to ambient light conditions. The 90-305VAC universal input simplifies installation.
How many meters of 20V LED strip can the HLG-40H-20AB support?
The HLG-40H-20AB provides 40W at 20V. Divide 40W by your LED strip's rated wattage per meter. For example, a strip rated at 10W per meter 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.
Is the HLG-40H-20AB suitable for a semi-exposed outdoor canopy installation?
The HLG-40H-20AB is rated IP65 water-resistant, protecting against dust and low-pressure water jets. It works well under canopies, awnings, or in weatherproof enclosures. It should not be placed where it could be submerged or hit by pressurized water. For fully exposed wet locations, the IP67-rated HLG-40H-20B with dimming is a better option.
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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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