BOKE BK-DYL040S-AHB1050ADN 40W DALI-2 D4i Dimmable Constant Current LED Driver

Slimline DALI-2 D4i and NFC-Programmable LED Driver for Professional Lighting

The BOKE BK-DYL040S-AHB1050ADN is a slimline 40W constant-current LED driver designed for intelligent and energy-efficient indoor lighting applications. Featuring DALI-2 DT6 and D4i technology, it is ideal for LED linear lights, tri-proof luminaires, office lighting and commercial lighting systems requiring advanced digital control.

Operating from a 200–240V AC/DC input, the driver provides a programmable output current of 150–1050mA and an output voltage range of 6–54V DC, subject to its 40W maximum output power. Output current can be configured using BOKE EasySet software through DALI or NFC programming. A high power factor of 0.98 and typical efficiency of 90% support reliable, energy-efficient performance.

The BK-DYL040S-AHB1050ADN supports DALI-2 DT6 dimming from 0.1–100%, delivering smooth, flicker-free brightness control. Its 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 a slimline housing, Class I construction, SELV output and IP20 protection. Integrated short-circuit, overload, over-temperature and hot-plug protection support dependable operation. With a nominal lifetime of up to 100,000 hours, CE, ENEC, UKCA, DALI-2 and D4i certifications, and a 5.5-year manufacturer guarantee, it provides a versatile solution for intelligent LED lighting systems.