This beautiful and always in fashion wall lamp is designed for any type of walls like concrete, brick or drywall . You choose your color depending on the color of the filament or can be painted with acrylic paint .
This lamp could light downside or upside wall depending of your necesities.
The only thing you will need is a circular LED bulb/strip diameter 80mm (see image ) and 12v power source.
To buy the circular led bulb from amazon here --- LED BULB--