This is the only dimmer I will buy. Simple to use, easy to install and has enough options to be used on most any incandesent luminaire (that's the NEW term for "light fixture")anywhere in the house. Won't work with flourecent bulbs, but, it will work with rope light, LED's, quartz lamps and the old standard A-19 light bulb. Also, because of its "Soft Start" operation I have noticed that standard light bulbs are lasting longer than they used to.
I purchased this switch to replace one that failed after 5 years of use. The dimmer feature is great and just what I wanted. It allows the user to preset the light level to accommodate the room preferences while allowing instant adjustments. Pricey but perfect.