The Tridonic Tridonic PCA 1x28w TC-DD BASICdim is a digital dimmable ballast suitable for running 1 x 28w 2D compact fluorescent lamp. These are processor-controlled ballasts offering noise-free precise control via DSI signal, switchDIM or corridorFUNCTION They have a nominal life up to 100,000 hours and can be used on DSI, switchDIM and corridorFUNCTION. Tridonic article number: 22185256