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Mean Well HLG-40H-20 Power Supply 40W 20V
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 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~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-20 to power 20V LED strip lighting outdoors?
Yes. The HLG-40H-20 outputs 20V at up to 2A (40W) and carries an IP67 waterproof rating, making it suitable for outdoor 20V LED strip installations exposed to rain or wet conditions. The aluminium casing and -40°C to +80°C operating range handle extreme weather well.
Is the HLG-40H-20 suitable for powering a small 20V LED channel letter sign?
It works for small channel letter signs where the total LED load stays under 40W. The HLG-40H-20 delivers a fixed 20V at up to 2A in constant-current mode, and its IP67 waterproof rating allows mounting inside outdoor sign cabinets without moisture concerns.
Can I run 20V LED panel lights from the HLG-40H-20?
Yes, as long as the panel load does not exceed 40W. The HLG-40H-20 provides 20V at up to 2A in constant-current mode with a 12-20V operating range. Its wide 90-305VAC input supports installation on most mains power worldwide, making it versatile for both commercial and residential panel setups.
How many meters of 20V LED strip can the HLG-40H-20 support?
That depends on the strip's rated power per meter. The HLG-40H-20 provides 40W at 20V. For example, if your strip draws 10W per meter, you 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-20 waterproof enough for an underground or in-ground installation?
The HLG-40H-20 is rated IP67, which means it can handle temporary immersion in water up to 1 meter deep for 30 minutes and is fully dust-tight. This makes it suitable for in-ground junction boxes or below-grade enclosures in landscape lighting, though it is not rated for continuous submersion.
What are the differences between the HLG-40H-20, 20A, 20AB, and 20B variants?
All four share the same 40W, 20V, 2A core specs. The base HLG-40H-20 has fixed output and an IP67 waterproof rating. The -20A adds adjustable output via potentiometer with an IP65 water-resistant rating. The -20AB adds both adjustable output and dimming at IP65. The -20B offers dimming without adjustable output and retains the IP67 waterproof rating.
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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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