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Constant Voltage LED Driver Dimming Drivers

Selecting the correct LED driver is critical to achieving reliable performance, smooth dimming, and long-term system reliability. However, many designers, electricians, contractors, and maintenance professionals mistakenly treat LED drivers as interchangeable power supplies, leading to flickering, inconsistent dimming, premature failures, and costly service calls. This guide explains the differences between constant voltage and constant current LED drivers, common replacement mistakes, and how MEAN WELL's PWM Series and XLG-ABV Series provide dependable constant voltage dimming solutions for a wide range of LED lighting applications.

  • MEAN WELL XLG-240-48-ABV

    XLG-240-48-ABV

    MEAN WELL

    48Vdc/5A

    $56.43 - $56.43
    Starting at $56.43
    $56.43 - $56.43
    Starting at $56.43
    1 In stock

    I/P 110-305VAC/2.7A(MAX) 48V5A, Constant Voltage LED Driver, Adjustable Output Voltage, Type HL, IP67, with Dimming, 240 Watts

  • MEAN WELL XLG-320-48-ABV

    XLG-320-48-ABV

    MEAN WELL

    48Vdc/6.5A

    $83.96 - $83.96
    Starting at $83.96
    $83.96 - $83.96
    Starting at $83.96
    1 In stock

    I/P 120-305VAC/3A(MAX) 48V6.5A, Constant Voltage LED Driver, Adjustable Output Voltage, Type HL, IP67, with Dimming, 320 Watts

  • MEAN WELL PWM-120-12

    PWM-120-12

    MEAN WELL

    12Vdc/10A

    $58.33 - $58.33
    Starting at $58.33
    $58.33 - $58.33
    Starting at $58.33
    207 In stock

    12Vdc 10A 12V Dimmable CV LED Driver 0~10Vdc, 10V PWM or Resistance IP67, Class II, PFC

  • MEAN WELL PWM-120-24

    PWM-120-24

    MEAN WELL

    24Vdc/5A

    $58.33 - $58.33
    Starting at $58.33
    $58.33 - $58.33
    Starting at $58.33
    290 In stock

    24Vdc 5A 24V Dimmable CV LED Driver 0~10Vdc, 10V PWM or Resistance IP67, Class II, PFC

  • MEAN WELL PWM-120-36

    PWM-120-36

    MEAN WELL

    36Vdc/3.4A

    $58.33 - $58.33
    Starting at $58.33
    $58.33 - $58.33
    Starting at $58.33
    11 In stock

    36Vdc 3.4A 36V Dimmable CV LED Driver 0~10Vdc, 10V PWM or Resistance IP67, Class II, PFC

  • MEAN WELL PWM-120-48

    PWM-120-48

    MEAN WELL

    48Vdc/2.4A

    $58.33 - $58.33
    Starting at $58.33
    $58.33 - $58.33
    Starting at $58.33
    1 In stock

    48Vdc 2.5A 48V Dimmable CV LED Driver 0~10Vdc, 10V PWM or Resistance IP67, Class II, PFC

  • MEAN WELL PWM-200-12

    PWM-200-12

    MEAN WELL

    12Vdc/15A

    $70.83 - $70.83
    Starting at $70.83
    $70.83 - $70.83
    Starting at $70.83
    35 In stock

    12Vdc 15A 12Vdc LED Driver 12 Volts 15 Amps IP67

  • MEAN WELL PWM-200-24

    PWM-200-24

    MEAN WELL

    24Vdc/8.3A

    $70.83 - $70.83
    Starting at $70.83
    $70.83 - $70.83
    Starting at $70.83
    118 In stock

    24Vdc 8.3A 24Vdc LED Driver 24 Volts 8.3 Amps IP67

  • MEAN WELL PWM-200-36

    PWM-200-36

    MEAN WELL

    36Vdc/5.55A

    $70.83 - $70.83
    Starting at $70.83
    $70.83 - $70.83
    Starting at $70.83
    14 In stock

    36Vdc 5.55A 36Vdc LED Driver 36 Volts 5.55 Amps IP67

  • MEAN WELL PWM-200-48

    PWM-200-48

    MEAN WELL

    48Vdc/4.17A

    $70.83 - $70.83
    Starting at $70.83
    $70.83 - $70.83
    Starting at $70.83
    3 In stock

    48Vdc 4.17A 48Vdc LED Driver 48 Volts 4.17 Amps IP67

  • MEAN WELL PWM-40-12

    PWM-40-12

    MEAN WELL

    12Vdc/3.34A

    $35.22 - $35.22
    Starting at $35.22
    $35.22 - $35.22
    Starting at $35.22
    82 In stock

    12Vdc 3.34A 12V Dimmable CV LED Driver 0~10Vdc, 10V PWM or Resistance IP67, Class II, Class 2, PFC

  • MEAN WELL PWM-40-24

    PWM-40-24

    MEAN WELL

    24Vdc/1.67A

    $35.22 - $35.22
    Starting at $35.22
    $35.22 - $35.22
    Starting at $35.22
    206 In stock

    24Vdc 1.67A 24V Dimmable CV LED Driver 0~10Vdc, 10V PWM or Resistance IP67, Class II, Class 2, PFC

  • MEAN WELL PWM-40-36

    PWM-40-36

    MEAN WELL

    36Vdc/1.12A

    $35.22 - $35.22
    Starting at $35.22
    $35.22 - $35.22
    Starting at $35.22
    1 In stock

    36Vdc 1.12A 36V Dimmable CV LED Driver 0~10Vdc, 10V PWM or Resistance IP67, Class II, Class 2, PFC

  • MEAN WELL PWM-40-48

    PWM-40-48

    MEAN WELL

    48Vdc/0.84A

    $35.22 - $35.22
    Starting at $35.22
    $35.22 - $35.22
    Starting at $35.22
    5 In stock

    48Vdc 0.84A 48V Dimmable CV LED Driver 0~10Vdc, 10V PWM or Resistance IP67, Class II, Class 2, PFC

  • MEAN WELL PWM-60-12

    PWM-60-12

    MEAN WELL

    12Vdc/5A

    $35.98 - $35.98
    Starting at $35.98
    $35.98 - $35.98
    Starting at $35.98
    195 In stock

    12Vdc 5A 12V Dimmable CV LED Driver 0~10Vdc, 10V PWM or Resistance IP67, Class II, Class 2, PFC

  • MEAN WELL PWM-60-24

    PWM-60-24

    MEAN WELL

    24Vdc/2.5A

    $35.98 - $35.98
    Starting at $35.98
    $35.98 - $35.98
    Starting at $35.98
    Out of stock

    24Vdc 2.5A 24V Dimmable CV LED Driver 0~10Vdc, 10V PWM or Resistance IP67, Class II, Class 2, PFC

  • MEAN WELL PWM-60-36

    PWM-60-36

    MEAN WELL

    36Vdc/1.67A

    $35.98 - $35.98
    Starting at $35.98
    $35.98 - $35.98
    Starting at $35.98
    3 In stock

    36Vdc 1.67A 36V Dimmable CV LED Driver 0~10Vdc, 10V PWM or Resistance IP67, Class II, Class 2, PFC

  • MEAN WELL PWM-60-48

    PWM-60-48

    MEAN WELL

    48Vdc/1.25A

    $35.98 - $35.98
    Starting at $35.98
    $35.98 - $35.98
    Starting at $35.98
    30 In stock

    48Vdc 1.25A 48V Dimmable CV LED Driver 0~10Vdc, 10V PWM or Resistance IP67, Class II, Class 2, PFC

  • MEAN WELL PWM-90-12

    PWM-90-12

    MEAN WELL

    12Vdc/7.5A

    $50.88 - $50.88
    Starting at $50.88
    $50.88 - $50.88
    Starting at $50.88
    62 In stock

    12Vdc 7.5A 12V Dimmable CV LED Driver 0~10Vdc, 10V PWM or Resistance IP67, Class II, PFC

  • MEAN WELL PWM-90-24

    PWM-90-24

    MEAN WELL

    24Vdc/3.75A

    $50.88 - $50.88
    Starting at $50.88
    $50.88 - $50.88
    Starting at $50.88
    320 In stock

    24Vdc 3.75A 24V Dimmable CV LED Driver 0~10Vdc, 10V PWM or Resistance IP67, Class II, Class 2, PFC

  • MEAN WELL PWM-90-36

    PWM-90-36

    MEAN WELL

    36Vdc/2.5A

    $50.88 - $50.88
    Starting at $50.88
    $50.88 - $50.88
    Starting at $50.88
    2 In stock

    36Vdc 2.5A 36V Dimmable CV LED Driver 0~10Vdc, 10V PWM or Resistance IP67, Class II, Class 2, PFC

  • MEAN WELL PWM-90-48

    PWM-90-48

    MEAN WELL

    48Vdc/1.88A

    $50.88 - $50.88
    Starting at $50.88
    $50.88 - $50.88
    Starting at $50.88
    18 In stock

    48Vdc 1.88A 48V Dimmable CV LED Driver 0~10Vdc, 10V PWM or Resistance IP67, Class II, Class 2, PFC

About Constant Voltage LED Driver Dimming Drivers:

Understanding how an LED driver interfaces with an LED load is essential when designing new lighting systems or replacing existing drivers. Constant voltage (CV) LED drivers maintain a fixed output voltage while allowing the connected load to determine the current draw, making them ideal for LED strips, channel lettering, architectural lighting, signage, and other lighting systems with built-in current limiting. In contrast, constant current (CC) LED drivers regulate output current by adjusting voltage to match the LED load, making them better suited for high-power LEDs, COB modules, high-bay fixtures, street lighting, and other applications requiring precise current regulation.

Using the wrong driver type is one of the most common causes of field failures. Installing a constant current driver on a constant voltage LED load can result in flickering, inconsistent brightness, dead travel when dimming, or complete failure of the lighting system. Likewise, selecting a replacement driver based solely on voltage or wattage without considering dimming methodology, control compatibility, or load requirements can lead to performance issues and unnecessary troubleshooting.

MEAN WELL's PWM Series and XLG-ABV Series are engineered to simplify constant voltage LED dimming while delivering outstanding reliability and compatibility across a broad range of lighting applications. Featuring multiple dimming interfaces, high efficiency, rugged industrial construction, and long operating life, these drivers are ideal for architectural lighting, LED tape and strip lighting, cove lighting, signage, landscape lighting, and other commercial and industrial LED systems. This technical guide provides practical selection advice, application examples, compatibility comparisons, and best practices to help designers, electricians, and contractors specify the correct LED driver with confidence while reducing installation issues and support calls.

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