MEAN WELL LCM-40DA2 42W DALI Dimmable Constant Current LED Driver (350-1050mA)

Lighting designers and electrical contractors use the MEAN WELL LCM-40DA2 to power LED luminaires in commercial and residential projects where DALI dimming control is required. This constant current LED driver delivers up to 42W with selectable output currents from 350mA to 1050mA via DIP switch, making it suitable for a wide range of LED modules.

Key specifications

• Output power: 42W max
• Output current: 350mA, 500mA, 600mA, 700mA, 900mA, 1050mA (DIP switch selectable)
• Output voltage range: 28-120V DC (depending on current setting)
• Input voltage: 180-295V AC
• Dimming: DALI interface, 0-100%
• Efficiency: up to 88%
• Power factor: >0.9 at 230VAC full load
• Protections: short circuit, over voltage, over temperature
• Auxiliary output: 12V / 50mA
• Operating temperature (Tc): -20°C to +90°C
• Housing: plastic, IP20

Why choose it

DALI dimming enables smooth, flicker-free control for smart lighting systems. The wide output current range and high voltage capability support various LED configurations, while built-in protections ensure reliable operation.

Ideal use cases

• DALI-controlled LED downlights and spotlights
• Architectural and accent lighting
• Commercial and residential lighting projects

Good to know

The driver is designed for indoor use and complies with relevant lighting standards. It features a 12V auxiliary output for powering a fan or controller.