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.
Table lamps, floor lamps, pendants: A-Shape bulb. (1) Brightness. You need to know how to make sure the brightness of your new LED A-shape bulb is at least equal to what you are accustomed to with your existing bulbs. The wattage of your old bulb wonât help you.