With their 4-cell Darklight reflectors, the CL downlights combine the advantages of downlights with the features of linear louvred luminaires. The Darklight reflector provides optimal glare control with a defined cut-off angle. The essential advantages of compact fluorescent lamps are their long service life and the reduced energy consumption, especially when using electronic control gear. Their compact dimensions and energy efficiency makes them ideal for use in downlights. The DALI-compatible luminaires have digital control gear through which each luminaire can be individually addressed - for instance using the ERCO Light System DALI with its integral ERCO Light Studio software.