BOKE BK-DLL040S-AHA1050ADP 40W DALI-2 DT8 Tunable White LED Driver

DALI-2 D4i Dimmable Constant Current LED Driver for Professional Tunable White Lighting

The BOKE BK-DLL040S-AHA1050ADP is a compact 40W constant-current LED driver designed for advanced tunable white lighting applications. Featuring DALI-2 DT8 and D4i technology, it provides independent control of warm white and cool white LED channels, making it ideal for downlights, spotlights, panel lights and professional indoor lighting systems requiring adjustable brightness and colour temperature.

Operating from a 200–240V AC/DC input, the driver offers an adjustable output current from 300mA to 1050mA, with 16 selectable settings via an integrated DIP switch. Its regulated output voltage ranges from 6–54V DC, depending on the selected current, with a maximum combined output power of 40W. A high power factor of 0.98 and typical efficiency of 89% support dependable, energy-efficient operation.

The BK-DLL040S-AHA1050ADP supports DALI-2 DT8 dimming from 0.1–100%, delivering smooth, flicker-free brightness and tunable white colour temperature control. D4i functionality enables energy monitoring, luminaire data access and diagnostic reporting, while DALI programming through BOKE EasySet allows additional configuration. Constant Light Output (CLO) and emergency lighting functions provide further flexibility.

Designed for independent indoor installation, the driver features Class II construction, SELV output and IP20 protection. Screw-free terminals, integrated strain relief and loop-in/loop-out wiring simplify installation, while built-in electrical and thermal protection supports reliable operation. With a nominal lifetime of up to 100,000 hours, DALI-2 and D4i certifications, and a 5.5-year manufacturer guarantee, it provides a versatile solution for intelligent tunable white lighting systems.