Osram Osram 1 39 W Electronic Compact Fluorescent Lighting Ballast, 220 → 240 V Part: QTi DALI 1x21/39/220-240 DIM

This is a smart electronic ballast that powers 39W compact fluorescent lights and lets you adjust brightness from anywhere using DALI controls.

Osram 1 Osram 1 22.5 W Electronic Compact Fluorescent Lighting Ballast, 220 → 240 V Part: QTi DALI 2x14/24/220-240 DIM

A dimming control ballast for fluorescent office lights that works with 220–240 volt electricity and lets you adjust brightness.