BOKE BK-DLL040S-AHA1050ADN 40W DALI-2 DT8 Tunable White LED Driver

DALI-2 D4i and NFC-Programmable Constant Current LED Driver for Professional Tunable White Lighting

The BOKE BK-DLL040S-AHA1050ADN is a compact 40W constant-current LED driver designed for intelligent tunable white lighting applications. Featuring DALI-2 DT8 and D4i technology, it provides precise 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 a programmable output current from 150mA to 1050mA and an output voltage range of 6–54V DC, subject to its 40W maximum combined output power. Current settings can be configured using BOKE EasySet software through DALI or NFC programming. A high power factor of 0.98 and typical efficiency of 89% support reliable, energy-efficient performance.

The BK-DLL040S-AHA1050ADN 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 programmable Constant Light Output (CLO) helps maintain consistent illumination over time. Central and self-contained emergency lighting applications are also supported.

Designed for professional indoor lighting installations, 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 dependable 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.