Street light interference phenomenon
Street light interference (SLI) is a term coined by paranormal author Hilary Evans to denote the claimed ability of individuals to turn street lights or outside building security lights on or off when passing near them. Believers in SLI allege that they experience it on a regular basis with specific lamps and more frequently than chance would explain; however, SLI has never been demonstrated to occur in a scientific experiment, and those who claim the ability have been found to be unable to reproduce the effect on demand.
Proponents
According to author Hilary Evans, SLI is a phenomenon "based on claims by many people that they involuntarily, and usually spontaneously, cause street lamps to go out." Evans' 1993 book The SLI Effect proposes that the phenomenon is "not consistent with our current knowledge of how people interact with the physical world." Evans coined the term "SLIder" to refer to someone who allegedly causes this effect, and cites SLIders' claims of being able to "extinguish a row of sodium vapor lamps in sequence, each one going out as the witnesses nears it."
