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Mean Well

Mean Well HLG-40H-12B Power Supply 40W 12V - Dimmable

premium quality, 7 years warranty, aluminium casing, high efficiency
SKU:
HLG-40H-12B
Model
Please for Pricing
|

Description

Features

Universal AC input (up to 305VAC) / Full range
High efficiency up to 90.5%
Built-in active PFC function, PF> 0.9 for 60% of load or higher
Protections: Short circuit / Over current / Over voltage / Over temperature
IP67 / IP65 design for indoor or outdoor installations
Class 2 power unit
Output current adjustable through output cable or internal potentiometer
Cooling by free air convection
Suitable for dry, damp and wet location
Suitable for LED lighting and street lighting applications
Meet 4kV surge immunity level (IEC61000-4-5)
Multiple models for choice: A-Type: IP65 rated. Output voltage and constant current level can be adjusted through internal potentiometer B-Type: IP67 rated and built-in 3 in 1 dimming function (1~10VDC, PWM signal, or resistance) Blank-Type: IP67 rated. Cable for I/O connection D-Type(option): IP67 rated. Timer dimming function, contact MEAN WELL for details.
7 years warranty

General Specification 

AC input voltage range 90~305VAC ; 127~431VDC
AC inrush current (max.) Cold start, 50A at 230VAC
DC adjustment range ±10% rated output voltage (A-Type only)
Current adjustment range 60%~100% rated output current adjustable by internal potentiometer (A-Type only)
Over current protection 95%~108% constant current limiting, auto-recovery
Over voltage protection 109%~145% rated output voltage, shut off, re-power on to recover
Setup, rise, hold up time 1000ms, 80ms, 16ms at full load and 230VAC
Withstand voltage I/P-O/P: 3.75kVAC, I/P-FG: 2kVAC, O/P-FG:0.5kVAC
Working temperature -40~+70ºC (refer to output derating curve)
Safety standards UL8750, TUV EN61347-1, EN61347-2-13, PSE J61347-1, J61347-2-13 approved; Design refer to UL60950-1, EN60950-1, EN60335-1
EMC standards EN55015, EN61000-3-2 class C, EN61000-3-3, EN61000-4-2,3,4,5,6,8,11, EN61547
Connection Input UL rated, SJTW 18AWGx3C (30cm)
Connection Output A/D/Blank-Type: SVT 18AWGx2C (30cm); B-Type: SVT 18AWGx2C (30cm)+UL2517 18AWGx2C (30cm)
Dimension (LxWxH) (mm) 171x 61.5x 36.8

Specifications
  • Brand
    Mean Well
  • Series
    HLG Series
  • Power Rating
    40 Watt
  • Output Voltage
    12 Volt
  • Rated Current
    3.33 Ampere
  • Input Voltage
    90V~305V
  • Standards Met
    CB,CCC,CE,EAC,PSE,RCM,TUV,UL
  • Operation Mode
    Constant Current,Constant Voltage
  • Operating Temperature
    -40°C~80°C
  • Warranty
    7 Year
  • Length
    17.1 cm
  • Width
    6.15 cm
  • Height
    3.68 cm
  • Weight
    0.73 kg

File Downloads

::specification::

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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

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.

Other HLG-40H Models

2 other models
ModelPowerVoltageCurrentIP Rating
Mean Well HLG-40H-24 Power Supply 40W 24V 40W 24V 1.67A IP67 View
Mean Well HLG-40H-24A Power Supply 40W 24V - Adjustable 40W 24V 1.67A IP65 View
View all 388 HLG Series models
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Mean Well HLG-40H-12B Power Supply 40W 12V - Dimmable
Mean Well

Mean Well HLG-40H-12B Power Supply 40W 12V - Dimmable

Please for Pricing

Features

Universal AC input (up to 305VAC) / Full range
High efficiency up to 90.5%
Built-in active PFC function, PF> 0.9 for 60% of load or higher
Protections: Short circuit / Over current / Over voltage / Over temperature
IP67 / IP65 design for indoor or outdoor installations
Class 2 power unit
Output current adjustable through output cable or internal potentiometer
Cooling by free air convection
Suitable for dry, damp and wet location
Suitable for LED lighting and street lighting applications
Meet 4kV surge immunity level (IEC61000-4-5)
Multiple models for choice: A-Type: IP65 rated. Output voltage and constant current level can be adjusted through internal potentiometer B-Type: IP67 rated and built-in 3 in 1 dimming function (1~10VDC, PWM signal, or resistance) Blank-Type: IP67 rated. Cable for I/O connection D-Type(option): IP67 rated. Timer dimming function, contact MEAN WELL for details.
7 years warranty

General Specification 

AC input voltage range 90~305VAC ; 127~431VDC
AC inrush current (max.) Cold start, 50A at 230VAC
DC adjustment range ±10% rated output voltage (A-Type only)
Current adjustment range 60%~100% rated output current adjustable by internal potentiometer (A-Type only)
Over current protection 95%~108% constant current limiting, auto-recovery
Over voltage protection 109%~145% rated output voltage, shut off, re-power on to recover
Setup, rise, hold up time 1000ms, 80ms, 16ms at full load and 230VAC
Withstand voltage I/P-O/P: 3.75kVAC, I/P-FG: 2kVAC, O/P-FG:0.5kVAC
Working temperature -40~+70ºC (refer to output derating curve)
Safety standards UL8750, TUV EN61347-1, EN61347-2-13, PSE J61347-1, J61347-2-13 approved; Design refer to UL60950-1, EN60950-1, EN60335-1
EMC standards EN55015, EN61000-3-2 class C, EN61000-3-3, EN61000-4-2,3,4,5,6,8,11, EN61547
Connection Input UL rated, SJTW 18AWGx3C (30cm)
Connection Output A/D/Blank-Type: SVT 18AWGx2C (30cm); B-Type: SVT 18AWGx2C (30cm)+UL2517 18AWGx2C (30cm)
Dimension (LxWxH) (mm) 171x 61.5x 36.8

Model

  • 120W 12V
  • 120W 12V Adjustable
  • 120W 12V Adjustable and Dimmable
  • 120W 12V Dimmable
  • 150W 12V
  • 150W 12V Adjustable
  • 150W 12V Adjustable and Dimmable
  • 150W 12V Dimmable
  • 40W 12V
  • 40W 12V Adjustable
  • 40W 12V Adjustable and Dimmable
  • 40W 12V Dimmable
  • 60W 12V
  • 60W 12V Adjustable
  • 60W 12V Adjustable and Dimmable
  • 60W 12V Dimmable
View product

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    0800 88 87 86

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    contact@wellforces.co.nz

  • Business Hours

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