Thursday, March 17, 2011

More on Light bulbs

The porch light currently has a 60-watt incandescent.  The 7-watt LED didn't work well because all the light was directed downward.  A CFL would probably fail because of the cold temperaturers outside.  However, the main problem is that this light often gets left on when we don't need it.  My next project will be to get a similar looking fixture, but with a light and motion sensor to turn it off automatically, for about $30.  A halogen bulb with a little lower wattage would probably last forever.  I could get a fixture for about $120 designed to use an LED bulb, but I think I will take the simpler option.   We have to go down a stairwell to get to the front door, and the LED fixture might not aim the light where we need it. 

The floodlights over the garage have a 50 watt halogen bulb on the left, and a 9 watt LED on the right.  The LED provides a lot of light when you are in the 20 degree beam.  The main problem with this light is that the motion sensor senses motion during a snowstorm and stays on all night. I may look for a better quality sensor, and keep the halogen bulb at least until it needs replacement. 

The wall lights over the kitchen sink are another opportunity to switch to LED.  Two four-watt candle bulb from Earth LED would probably work well in place of the 25-watt incandescents. 

This hall light is one of the few places I have been able to use a CFL.  The glass canopy is attached with three set screws that leave a little air space for ventilation, and it is probably an 11-watt. 

A community's energy use is a product of population times affluence times life style.  Maybe I can make a few life-style changes while I am still relatively affluent.  However, the person with the lowest carbon footprint that I know of is an acerbic, childless spinster who doesn't believe in peak oil or global warming.  However, she lives in a very small apartment and walks almost everywhere because she is allergic to her car.

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