Brownout 5631299 206840545 2008-04-20T06:39:04Z Joseph Solis in Australia 957447 Change wikilink '''Brownout''' may refer to: * [[Brownout (medical)]] a dimming of the vision caused by [[Hypotension|loss of blood pressure]] or [[Hypoxia (medical)|hypoxia]] (sometimes referred to as a grey-out). * [[Power outage|Brownout (electricity)]] drop in [[voltage]] in an electrical power supply, so named because it typically causes lights to dim. * [[Brownout (aviation)]] reduced flight visibility due to airborne particles, especially from helicopter downwash. {{disambig}}