Mitochondrial disease is a group of disorders caused by dysfunctional mitochondria, the organelles that generate energy for the cell.itochondrial diseases are sometimes (about 15% of the time) caused by mutations in the mitochondrial DNA that affect mitochondrial function.
1 Surface-mounted light â the finished housing is exposed, not flush with surface. 2  Chandelier. 3  Pendant light â suspended from the ceiling with a chain or pipe.  Sconce â provide up or down lights; can be used to illuminate artwork, architectural details; commonly used in hallways or as an alternative to overhead lighting.
In general, these pendant lights should hang 32 to 42 inches above the top of your island. Ideally, the distance from the floor to your island pendant should be approximately 72 inches. Kitchen island pendants can be used as statement pieces. Choose a finish that pops in your space to create a tasteful contrast.