Over 15 years experience of providing support of MEAN WELL Power Supplies
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Mean Well HLG-120H-54B Power Supply 120W 54V- Dimmable
The HLG-120H is a 120W Mean Well power converter (input range: 90~305VAC, operating temperature: -40~+80℃).
Key Features
- ✓ Input voltage range: 90~305VAC
- ✓ DC output voltage adjustable ±10%
- ✓ 3.75KVAC reinforced I/O isolation
- ✓ Cooling by free air convection
- ✓ Wide operating temperature: -40~+80℃
- ✓ Protections: Short circuit / Over voltage / Over temperature
- ✓ Active PFC — meets international energy efficiency regulations
- ✓ Safety approvals: Note.8 SAFETY &
- ✓ 3 years warranty
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BrandMean Well
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SeriesHLG Series
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Power Rating120 Watt
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Output Voltage54 Volt
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Rated Current2.3 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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Length8.66 in
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Width2.68 in
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Height1.53 in
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Weight2.47 lb
::specification::
Frequently Asked Questions
Can I use the HLG-120H-54B for dimmable outdoor 54V LED facade lighting?
Yes. The HLG-120H-54B delivers 120W at 54V with 1-10V/PWM dimming input and IP67 waterproof protection, making it well suited for outdoor facade and architectural lighting where brightness control and weather resistance are both required.
Is the HLG-120H-54B suitable for dimmable 54V LED street or pathway lighting?
Yes. At 120W and 54V with IP67 protection and -40°C to +80°C operating range, it can power 54V pathway or street-light fixtures year-round. The 1-10V/PWM dimming input allows scheduled dimming during off-peak hours to save energy.
Can I pair with the HLG-120H-54B to a timer or photocell for automatic outdoor LED dimming?
Yes. The 1-10V/PWM dimming input is compatible with photocell-driven dimming controllers and astronomical timers commonly used in outdoor lighting systems. This enables automatic brightness reduction based on time of night or ambient light levels.
How many meters of 54V LED strip can the HLG-120H-54B power?
The HLG-120H-54B supplies up to 120W at 54V. If your 54V strip draws 10W/m, you could run up to 12 meters (120W / 10W per meter = 12m). Always check your strip's rated power per meter and ensure the total load stays at or below 120W.
Can the HLG-120H-54B withstand harsh outdoor weather including freezing temperatures?
Yes. Its IP67 rating seals the unit against dust and temporary water submersion, and the -40°C to +80°C operating range covers extreme cold and heat. The aluminium casing provides additional durability and corrosion resistance for permanent outdoor installations.
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Other HLG-120H Models
1 other model| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well HLG-120H-15A Power Supply 120W 15V - Adjustable | 120W | 15V | 8A | IP65 | $54.29 | View |
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