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Mean Well HLG-40H-30A Power Supply 40W 30V - Adjustable
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 Voltage30 Volt
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Rated Current1.34 Ampere
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Input Voltage90V~305V
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No of Output1
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Dimming ControlBuilt-in Potentiometer
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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-30A to power a 30V LED accent lighting installation?
Yes. The HLG-40H-30A delivers 30V at up to 1.34A (40W) and includes a built-in potentiometer for output adjustment. This lets you fine-tune the voltage and current to precisely match your 30V accent LEDs, which is especially useful when the LED load doesn't require the full rated output.
Is the HLG-40H-30A suitable for powering 30V LED strips in a retail display case?
Yes. At 40W with adjustable output, the HLG-40H-30A can power 30V LED strip lighting in display cabinets, showcases, or shelf lighting. The output adjustment allows you to dial in the exact brightness level needed for merchandise presentation without a separate dimmer.
Can the HLG-40H-30A drive 30V LED modules for a small indoor sign?
Yes, as long as the total module load stays within 40W. The constant-current operating range of 18-30V accommodates typical LED module string voltages. The adjustable output lets you trim the driver to match the exact forward voltage of your module chain for optimal performance.
How many meters of 30V LED strip can the HLG-40H-30A handle?
Divide 40W by the strip's power draw per meter. A 30V strip rated at 10W/m would allow 4 meters (40W / 10W per meter = 4m). A lower-power strip at 6W/m would allow about 6.6 meters. Always verify your strip's rated power per meter and keep the total load at or below 40W.
Is the HLG-40H-30A suitable for a damp bathroom or laundry room installation?
Yes. Its IP65 rating protects against water jets and dust ingress, which is sufficient for damp indoor environments like bathrooms, laundry rooms, or utility areas. For installations directly exposed to rain or potential standing water, the IP67-rated HLG-40H-30 would be 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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