A sconce is a type of light fixture affixed to a wall in such a way that it uses only the wall for support, and the light is usually directed upwards, but not always. It does not have a base on the ground. For this reason, lighting fixtures will need an electrical box to be installed. A sconce may be a traditional torch, candle or gas light, or a modern electric light source affixed in the same way. Modern fittings are more often called wall lights or similar terms, especially if the light source is wholly covered by glass.
Sconces can be placed on both the interior and exterior walls of buildings. In pre-modern usage, these usually held candles and torches respectively. Historically, candle sconces were often made of silver or brass from the 17th century, with porcelain and ormolu coming into use during the 18th century. The light of the candle flame was often intensified by a reflecting backplate.