Posts Tagged ‘Energy Conservation’

Posted on March 29th, 2009 by by The Transition Companies

Flashlight Energy Conservation

By Ian Pennington
So, for flash bulbs to be useful in times of emergency one needs to store batteries also. Flashlights came into use in the last decade of nineteenth century. At that time, it was used for providing fancy light arrangement. Later some suave businesspersons suddenly realized its potential as a source of light when […]

Tags: , ,