08 January 2010

June 2009 - Lighting

Our June monthly act was fitting all lights in the house with energy-saver fluorescent light globes. There are 23 light bulbs in our house and we had been slowly replacing them. When we replaced the two in our kitchen dining area the drop in our energy usage was stunning! We still have two small halogen lamps which we try to limit use of, a couple of outdoor lights that we didn’t replace, and the laundry light. The first two we bought were 'cool white', which is very bright - suitable for our kitchen, but not so nice for a reading lamp, for example. After that we mostly purchased 'wamr white', which I much prefer. They don't feel 'fluoro' at all.

Initial cost: Individual globes can cost around $7 each, but we bought in packs of six, which were around $15-$20.

Initial time: About half an hour to go through replacing globes.

Ongoing time or cost commitment: Zero time; ongoing replacement costs (minimal).

Impact: If every light in the house was on previously it would have been using around 1500 watts. Now it would use around 200 watts. Effectively we have dropped our electricity usage for lighting by about 85%.


  1. you can even get even cheeper to run LED lighting to fit in your conventional sockets. The light is great and way cheeper to run then fluro's

  2. Everyone should be replacing their old energy inefficient lights - I am always horrified at the wastage/inefficiency when I see the old-style globes being used anywhere.

  3. Replies
    1. Agree! Its nearly five years since we took this action and in those years cost and availability of LEDs has improved outstandingly. They are definitely now the better option - much more efficient than CFLs. Also often closer to traditional light-bulb size and shape, so fit better into old fittings and covers.

  4. I have replaced most of my lights with LEDs and intend to replace the remaining non-LED lights by the end of 2016.