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Mean Well HLG-40H-24AB Power Supply 40W 24V - Adjustable and Dimmable
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Mean Well HLG-40H-24AB Power Supply 40W 24V - 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 Voltage24 Volt
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Rated Current1.67 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-24AB for outdoor 24V LED strip lighting with dimming control?
Yes. The HLG-40H-24AB delivers 24V at up to 1.67A (40W) and includes both output adjustment and 1-10V/PWM dimming input, giving you full brightness control. Its IP65 rating protects against water jets and dust, making it suitable for covered outdoor installations like soffits, canopies, or patio ceilings.
Is the HLG-40H-24AB a good fit for powering a small 24V LED sign?
Yes, provided the sign's total power draw stays within 40W. The HLG-40H-24AB outputs 24V with a constant-current range of 14-24V, so it can accommodate LED sign modules that operate anywhere in that voltage window. The built-in dimming input also lets you reduce sign brightness for nighttime operation.
Can the HLG-40H-24AB power 24V LED under-cabinet lighting in a kitchen?
Yes. At 40W and 24V, it can handle typical under-cabinet LED strips or light bars. The adjustable output lets you fine-tune voltage to match your specific LED load, and the dimming input allows brightness control through a compatible 1-10V or PWM dimmer.
How many meters of 24V LED strip can the HLG-40H-24AB power?
Divide 40W by your strip's rated power per meter. For example, a 24V strip rated at 8W/m would allow up to 5 meters (40W / 8W per meter = 5m). A higher-density strip at 14.4W/m would allow about 2.7 meters. Always check your strip's rated power per meter and keep the total load at or below 40W.
Can the HLG-40H-24AB be installed in a location exposed to direct rain?
The HLG-40H-24AB is rated IP65, which protects against low-pressure water jets and dust but not submersion or prolonged heavy rain exposure. It is best suited for sheltered outdoor areas or indoor wet locations. For fully exposed outdoor installations, consider the IP67-rated HLG-40H-24B instead.
What are the differences between the HLG-40H-24, 24A, 24AB, and 24B variants?
All four share the same 40W / 24V / 1.67A core specs and CC range of 14-24V. The base HLG-40H-24 has fixed output and IP67 waterproofing. The -24A adds output voltage/current adjustment via potentiometer (IP65). The -24AB adds both adjustment and 1-10V/PWM dimming input (IP65). The -24B offers dimming input only and retains IP67.
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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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