Outdoor / Garden Wall Lighting
With its ability to be mounted on wall, fences, trees and sheds outdoor / wall lighting certainly has many uses. It's important as always to first (as always) decide what your trying to achieve with your wall lighting. Lights such as the Lotus wall light is very low powered and should really be seen as a decorative light rather then functional lighting. While at the other end of the spectrum the Callisto wall light and the Halo wall light at 2W is easily capable of being used as functional lighting and could be used to light alley ways for example.
If you're looking to use your wall lighting as a down light, then the Nano wall light with it's 2W spotlight would be ideal for this task.