http://www.perfectpicturelighting.com - The first decision would be profile, do you want the curved neck of the DXL or the more angular neck of the DSL? (See the images of both below). Both options bring you terrific modern appeal and a slim line shade. The modern appeal of slim satin nickel art lights is why they available in so many formats, from incandescent Slim Lines (SL style) to the SLED style which offers the exact same shade but using LED arrays that last for 50,000 hours or more.