MEAN WELL XLG-320-L-AB – 315W 150–300V IP67 Adjustable 3-in-1 Dimmable Constant Power LED Driver
The MEAN WELL XLG-320-L-AB is a high-performance 315W AC/DC LED driver designed for professional indoor and outdoor LED lighting applications. Featuring constant power (CP) operation, adjustable output current, and advanced 3-in-1 dimming technology, it provides stable, efficient, and reliable power for demanding high-voltage LED lighting systems.
With a rated output power of 315W, a default output current of 1400mA, and a constant current voltage range of 150–300V DC, this LED driver delivers excellent performance with a typical efficiency of 94.5%.
The integrated 3-in-1 dimming function supports 0–10V DC, 10V PWM signals, and resistance-based control, enabling flexible brightness adjustment and integration into compatible lighting control systems.
The built-in potentiometer allows the output current to be adjusted according to the requirements of compatible LED modules, providing additional flexibility during installation and configuration.
Its durable metal housing and IP67 protection rating provide excellent resistance to dust and water, making the driver suitable for demanding industrial environments and outdoor lighting installations.
The fanless design ensures silent operation and efficient cooling through natural air convection. Integrated protection against short circuits, overvoltage, and overheating helps ensure safe and reliable performance.
Key Features
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Manufacturer: MEAN WELL
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Model: XLG-320-L-AB
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Series: XLG-320
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Rated output power: 315W
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Default output current: 1400mA (1.4A)
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Adjustable output current: 500–1400mA
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Full power current range: 1050–1400mA
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Constant current voltage region: 150–300V DC
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Maximum open-circuit voltage: 340V DC
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Input voltage: 100–305V AC / 142–431V DC
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Input frequency: 47–63Hz
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Operating mode: Constant Power (CP) / Constant Current (CC)
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Output current adjustment: Built-in potentiometer
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Dimming technology: 3-in-1 dimming (0–10V DC, 10V PWM, resistance)
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Dimming feature: Dim-to-off function
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Standby power consumption: Less than 0.5W when dimmed off
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Efficiency: 94.5% (typical)
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Protection rating: IP67 – dust-tight and protected against temporary immersion in water
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Cooling: Fanless, natural air convection
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Housing: Durable metal enclosure
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Operating case temperature: -40°C to +85°C
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Dimensions: 246 × 77 × 39.5mm
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Weight: Approximately 1.45kg
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Surge protection: 6kV line-to-earth / 4kV line-to-line
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Protection features: Short-circuit, overvoltage, and overtemperature protection
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Expected lifetime: Over 50,000 hours under specified operating conditions
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Manufacturer warranty: 5 years
Applications
Ideal for:
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LED street lighting and outdoor illumination
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Industrial and commercial LED lighting
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High-bay and warehouse lighting
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Stadium and floodlight lighting
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Architectural and landscape lighting
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Horticultural and greenhouse LED lighting
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High-power LED luminaires
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Professional lighting systems with 0–10V dimming control
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Automated and intelligent lighting installations
The MEAN WELL XLG-320-L-AB combines advanced 3-in-1 dimming technology, high efficiency, adjustable output current, and robust IP67 construction, making it an excellent choice for professional LED lighting applications requiring flexible brightness control and long-term reliability.
Installation note: This is a high-voltage adjustable constant-current LED driver, not a conventional fixed-voltage power supply. Verify the connected LED module's operating voltage, required current, power consumption, and dimming compatibility before installation. The AB version supports external 3-in-1 dimming, unlike the A version, which only provides built-in output current adjustment. Electrical installation should be performed by a qualified professional.