MEAN WELL Constant Voltage Driver
MEAN WELL constant-voltage power supplies for 12, 24, 36 and 48 V LED strips.
8 series, 168 models from MEAN WELL's datasheets: LRS enclosed supplies for indoor use, LPV, ELG, HLG and XLG waterproof drivers, and PWM drivers that dim LED strips over 3-in-1, DALI-2 or KNX.
Series overview
- Output
- Constant voltage
- Output voltage
- 12 / 24 / 36 / 48 V
- Power
- 20–600 W
- Dimming
- 3-in-1, DALI-2, KNX
Indoor Enclosed
Enclosed-type switching power supplies with a 1U low profile; their datasheets give no ingress protection (IP) rating.
Waterproof (IP67)
LED drivers rated IP67 (IP65 for some adjustable ELG/HLG types) for indoor or outdoor installations.
4 of 4 models
MEAN WELL Constant Voltage DriverMEAN WELL LPV Series
Constant-voltage LED power supplies fully encapsulated in an IP67 plastic case; MEAN WELL excludes LED luminaire use in the EU and China.
- Output
- Constant voltage
- Output voltage
- 12 / 24 / 36 / 48 V
- Power
- 20–150 W
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MEAN WELL Constant Voltage DriverMEAN WELL ELG Series
Constant voltage + constant current LED drivers in a metal housing rated IP67 or IP65, depending on type.
- Output
- Constant voltage + constant current
- Output voltage
- 12 / 24 / 36 / 48 V
- Power
- 75–300 W
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MEAN WELL Constant Voltage DriverMEAN WELL HLG Series
Constant voltage + constant current LED drivers in a metal housing with class I design, rated IP67 or IP65 by type.
- Output
- Constant voltage + constant current
- Output voltage
- 12 / 24 / 36 / 48 V
- Power
- 40–600 W
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MEAN WELL Constant Voltage DriverMEAN WELL XLG Series
IP67 metal-case LED drivers: 12/24 V models in constant voltage + constant current mode, XLG-320-V and the 48 V ABV models in constant voltage.
- Output
- Constant voltage + constant current
- Constant-voltage-only models
- XLG-320-V and the 48 V ABV models
- Output voltage
- 12 / 24 / 48 V
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Dimmable for LED Strip
Constant-voltage drivers with PWM-style output that dims LED strips via 3-in-1, DALI-2 or KNX control.
3 of 3 models
- MEAN WELL Constant Voltage Driver
MEAN WELL PWM Series
Constant-voltage LED drivers with PWM-style output and 3-in-1 dimming for LED strips; fully encapsulated, IP67.
- Output
- Constant voltage, PWM-style output
- Output voltage
- 12 / 24 / 36 / 48 V
- Power
- 40–200 W
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MEAN WELL Constant Voltage DriverMEAN WELL PWM DALI-2 Series
DA2 type of the PWM series: constant-voltage PWM-style output for LED strips, controlled over DALI-2, IP67.
- Output
- Constant voltage, PWM-style output
- Output voltage
- 12 / 24 / 36 / 48 V
- Power
- 60–200 W
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MEAN WELL Constant Voltage DriverMEAN WELL PWM KNX Series
KN type of the PWM series: constant-voltage PWM-style output for LED strips with a built-in KNX interface.
- Output
- Constant voltage, PWM-style output
- PWM frequency
- 200–4000 Hz, set via ETS
- Output voltage
- 12 / 24 / 36 / 48 V
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Why specify MEAN WELL Constant Voltage Driver
Match the Output Voltage
The driver output voltage must match the strip's rated input voltage; constant-current drivers should only be used with compatible LED modules or fixtures.
Confirm the Connected Load
Calculate load from the strip model, watts per meter and total connected length, then verify against the exact driver datasheet and derating conditions.
Select the Dimming Method
Non-dimmable drivers suit switched circuits; the PWM series dims strips from a 0–10 V, PWM or resistance signal, DALI-2 or KNX. DMX512, SPI and wireless systems need a separate controller or decoder.
Verify Installation and Documents
Check AC input, installation location, ambient temperature, enclosure and wiring method, plus model, wiring diagram, certification coverage and warranty conditions.
Questions
Can any 24V power supply be used with a 24V LED strip?
No. The output voltage must match, but buyers must also check the connected load, AC input, dimming method, ambient temperature, enclosure, wiring, certification and installation requirements. A matching voltage alone does not confirm complete compatibility.
How should buyers calculate the required LED driver wattage?
Calculate the connected strip load using the selected model's rated watts per meter and the length connected to each driver output. Final sizing should follow the exact driver's continuous-output rating, derating requirements, circuit arrangement and installation conditions.
Is the 80% load rule mandatory for every LED driver?
No. It is a common planning approach, not a universal requirement. Some drivers can operate at full rated load under defined conditions, while others require derating based on ambient temperature, input voltage, enclosure or mounting method. Always follow the exact model datasheet.
Which MEAN WELL drivers dim an LED strip?
The PWM series: its output stays at the strip's rated voltage and dimming varies the duty cycle, from a 0–10 V, 10 V PWM or resistance signal, over DALI-2 (DA2 type) or KNX (KN type). The B-type ELG and HLG drivers dim by adjusting output current, as their datasheets describe.
Does an IP67 driver make the complete LED strip system suitable for wet locations?
Not automatically. The driver's IP rating applies only to the tested driver enclosure. Cable entries, connectors, junction boxes, dimmers, controllers and the LED strip require their own suitable protection and installation method. Final use must follow the product ratings and local requirements.
Need a custom mean well constant voltage driver?
Voltage, CCT, CRI, PCB width, IP construction, reel length and packaging are configured per project. Send us your application and we will recommend a model and prepare samples.
