Adding a dimmer to your lighting system gives you more options when determining light levels in a room. If your lighting system consists of Lutron Tu-Wire fluorescent lamps, you will need the Lutron DVSCFTU-5A3P Diva Satin dimmer. Diva Series dimmers feature a large on/off paddle with a dimmer slider on the side. The Satin Series designation relates to the many new colors available for these dimmers. Note that this dimmer is for use on systems with 120V 5A lamps. The dimmer is also compatible with Advance Mark 10 ballasts.