Definitions for "Brownouts"
A brownout is a reduction of your incoming voltage. Brownouts are the most common form of power problems, accounting for over three-quarters of all power problems. When brownouts occur, the lower voltage causes your computer system to work harder then it has to. This can cause excessive wear and premature failure of critical components.
Temporary reduction in voltage, which can sometimes cause data loss.
A controlled power reduction in which the utility decreases the voltage on the power lines, so customers receive weaker electric current. Brownouts can be used if total power demand exceeds the maximum available supply. The typical household does not notice the difference. From November 2000 through May 2001, California experienced a series of planned brownouts to groups of customers, for a limited duration, in order to reduce total system load and avoid a blackout due to alleged electrical shortages. ()