Tuesday, April 17, 2012

Let there be light

Many years ago relative of mine used to complain that he suffered from Seasonally Affective Disorder (SAD) due to lack of access to natural sunlight during the dark short days that are a feature of the Irish summer. As a result he had a special light box which supplied him with a light spectrum that mimicked the frequency spectrum of natural light. I think we all  appreciate having plenty of access to natural light and so I briefly considered purchasing a similar device myself - but at the time the cost of the device was prohibitive and they consumed a huge amount of electricity.

NuLight beside an Old blub
Recently a friend of mine told me about a UK based company called Nulight which sells a modern energy efficient version of the same thing that they call the Daylight Bulb. It is essentially a replacement for a normal light bulb and it fits into a normal light fixture. I bought the 65 watt version which cost me just over £10stg (plus P&P). Although it is called a 65 watt bulb, my current cost meter tells me that it only consumes about 56 watts of power.

My home office has a north facing windows and although it is not really dark, it is noticeably less bright than the south facing rooms in the house. When I installed the new light in it I could immediately notice the difference even in the middle of the day. I would estimate that the amount of light coming from this new bulb is even stronger than a floodlight which I have installed out the back of the house - however the floodlight consumes about 250 watts of power.

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