They are decently bright for accent lighting... reproducing nearly every non-white color you can think of. The base is white plastic with a gloss white painted metal ring and the front lens and is not adjustable., Light coverage area is based on distance from wall and reflectivity. A little bit of space between the lights and the wall reduce any specular color appearance of the more pale colors (like yellows). The only things I didn't really like is: The power transformer is at the plug, completely attached, and is about 2"x3"x1" which takes up a bit of space and doesn't give you the option of hiding the transformer in a different location than at the wall outlet and you cant fish it through anything small. The minimum dim level is something like 10%... which means dimming on or off there is that sudden jump to/from the off level. Overall I am pretty happy with them and are looking forward to trying out the Lux bulbs as well as the LED strips.