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Mean Well HLG-40H-54B Power Supply 40W 54V - 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,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-54B with an external dimmer to control outdoor 54V LED path lights?
Yes. The B suffix indicates it accepts 1-10V, PWM, or resistance dimming input, making it suitable for outdoor path or landscape lighting where brightness needs to change based on time of day. Its IP67 waterproof rating allows fully exposed outdoor mounting.
Is the HLG-40H-54B a good choice for powering a small 54V LED floodlight?
Yes, as long as the floodlight draws 40W or less at 54V. The constant-current operation with a CC voltage range of 32-54V provides stable output for LED floodlights. The IP67 rating and -40°C to +80°C operating range make it reliable in harsh outdoor conditions.
Can the HLG-40H-54B drive 54V LED strips for outdoor architectural facade lighting?
Yes. At 40W and 54V with IP67 waterproof protection, it can power a short run of 54V LED strips mounted on building facades. The dimming input allows integration with lighting control systems for dynamic facade effects, though the 40W capacity limits the total strip length.
How many meters of 54V LED strip can the HLG-40H-54B drive?
That depends on the strip's rated wattage per meter. The HLG-40H-54B provides up to 40W at 54V. For instance, a strip rated at 10W/m would allow 4 meters (40W / 10W per meter = 4m). Check your strip's rated power per meter and keep total load within 40W.
Can I install the HLG-40H-54B in a location that floods occasionally?
The IP67 rating means it is protected against temporary immersion in water up to 1 meter for 30 minutes. It can survive occasional shallow flooding, but it is not designed for permanent submersion. For areas that regularly flood, ensure the driver is mounted above the expected water line.
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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 | $31.16 | 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 | $37.32 | 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 |
