Meanwell Driver LCM-40DA2 42W 350-1050mA DALI 2 Dimmable

The Mean Well LCM-40DA2 is a DALI 2 dimmable LED driver with constant current output up to 42W, engineered for precise and reliable control in professional lighting installations. Full compatibility with the DALI 2 protocol makes it the ideal choice for smart lighting systems and building automation applications.

This Mean Well LED driver stands out for its versatility: the output current is selectable via on-board dip-switch from 350mA to 1050mA, accommodating a wide range of constant-current LED modules. The output voltage automatically adjusts between 2 and 100V DC according to the connected load, ensuring maximum flexibility during installation.

Key technical specifications

The driver delivers a maximum output power of 42W with a declared efficiency of 91%, minimising heat dissipation without requiring a cooling fan. The input voltage ranges from 220 to 240V AC, compatible with EU, AUS, USA, UK and Japan power grids. The ABS housing offers a compact footprint of just 123 x 81 x 23 mm. Multiple units can be synchronised via the sync terminal, and push button dimming is also supported.

Safety and protection

The LCM-40DA2 is rated Insulation Class II and carries a protection degree of IP20, making it suitable for indoor installations such as suspended ceilings, electrical enclosures and recessed LED profiles.

Applications

Perfect for dimmable LED lighting systems in commercial, retail, museum and architectural environments where integration with a DALI 2 bus or control unit is required for advanced light management.