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Mean Well HLG-40H-12B Power Supply 40W 12V - Dimmable
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Mean Well HLG-40H-12B Power Supply 40W 12V - 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 Voltage12 Volt
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Rated Current3.33 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-12B to dim 12V LED landscape lighting outdoors?
Yes. The HLG-40H-12B delivers 40W at 12V with built-in dimming via 1-10V, PWM, or resistance input, and carries an IP67 waterproof rating. This makes it suitable for outdoor landscape path lights, garden accents, or bollard fixtures where dimming control and weather resistance are both needed.
Is the HLG-40H-12B suitable for powering dimmable 12V LED strips on an outdoor deck?
Yes. Its IP67 rating protects against rain and temporary submersion, and the dimming input lets you adjust brightness for ambient evening lighting on decks, railings, or stair treads. At 40W you can drive a moderate run of 12V strip.
Can the HLG-40H-12B power a 12V LED sign that needs dimming for day-night adjustment?
Yes. The 40W output at 12V is enough for a small 12V sign, and the dimming input lets you reduce brightness at night to avoid light pollution or comply with local ordinances. The IP67 waterproof housing allows outdoor mounting without a separate enclosure.
How many meters of 12V LED strip can the HLG-40H-12B drive?
That depends on the strip's power draw per meter. The HLG-40H-12B supplies up to 40W at 12V. A strip rated at 4W/m could run up to 10 meters (40W / 4W per meter = 10m). Always check your strip's rated power per meter and keep total load at or below 40W.
Can the HLG-40H-12B withstand freezing temperatures in a northern outdoor installation?
Yes. Its operating temperature range of -40°C to +80°C means it can start and operate reliably in extreme cold. Combined with the IP67 waterproof enclosure, it handles snow, ice, and freeze-thaw cycles without damage.
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Other HLG-40H Models
5 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| 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 |
