energy saving made easy



Controllers

Technical

New technology can now simply set the light levels to the standard or nominal  levels , which will reduce lighting costs by up to 30% and provide significant energy savings.

Reducing the voltage on discharge lamps to 207V in turn reduces the current drawn by the lamp, and so the resultant power consumed by it. Many people mistakenly assume that because a lamp has say, 400Watts stamped on it, that the power of the lamp is a constant. It is the resistance that is the constant, and the power rating of the lamp is determined by the lamp manufacturer, based on its rated voltage, i.e. 230V +/- 10 %. The higher the voltage applied to the lamp, the higher its power rating and vice-versa.

To utilise this beneficial feature of discharge lamps the Opt-i-Mizer and fluoresave controllers reduce the voltage, after a start up period and by a step reduction of a pre-determined amount (factory set). The step voltage reduction is achieved in a way such that the supply sine wave is maintained at a reduced mean level without any chopping of the voltage to the lamps and accordingly no additional harmonic distortion or noise is introduced. This is also achieved without any interruption or break at the switching point.


 

2005 Copyright Energy Optimizers Ltd.