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No. Turning on a light uses no more current than keeping it on. This may differ with specialty lights like sodium vapor or metal halides which require a large current to "start" but these lights are rarely used in the home. Turning on an inductive device like an electric motor requires much more of a "kick" to start it, conversely. A standard light bulb though? No, leaving the lights on uses far more power than switching them on.

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Q: Does turning on lights take more energy then leaving the lights on?
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AnswerThere is negligible savings by leaving the light on. It does take slightly more energy to turn on a fluorescent light that to just keep it burning, but their are no savings if the time is more than a second or two.we have tested that when you keep the lights on it uses more electricity than if you turn the lights on and off


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