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Blog Thread 4; Live Free or Blog Hard - 'cos we all like blogging
pwhodges:
My kitchen is lit by twelve 50W low-voltage halogen lamps. Well, it was; today I replaced them with twelve 6W mains-voltage LED lamps (removing the transformers took most of the time). I now have the same or slightly higher light levels, and more uniform, because some of the halogens had lost brightness with age and not all had the same beam width. I calculate that the saving in electricity consumption will be about £1 a day - for a capital outlay of under £120 (bulbs and GU10 tails for the fittings).
I have another room with similar lights and usage which I will make the same change to soon, and a third that is little used so can be left till last.
Eighteen months ago I put into a new extension what at that time were the first LED lights I'd seen whose quality was satisfactory for domestic living. The new bulbs each cost one fifth as much money - that's how fast things have changed.
Carl-E:
That needs to be cross posted in "Stewards of the Earth"
Akima:
--- Quote from: pwhodges on 15 Feb 2015, 10:13 ---My kitchen is lit by twelve 50W low-voltage halogen lamps. Well, it was; today I replaced them with twelve 6W mains-voltage LED lamps (removing the transformers took most of the time).
--- End quote ---
I must look at this again. Last time I looked at replacing the 12v track-mounted halogen spot-lights in my kitchen, the LED replacements weren't up to the job, but as you point out, things are changing rapidly.
The Seldom Killer:
I was at an expo about five years ago looking at some stuff a Chinese company was promoting as cutting edge and whilst the concepts and designs were good, they were a little cagey about the actual quality of the stuff being produced for market. Taking a look a some hardware store stuff recently it seems to be markedly improved.
Sheffield has started rolling out installation of LED street lighting and some of the streets around where I live have been covered early in the schedule of works. Genuinely, I'm quite impressed with the output and colour temperature. I't a marked improvement on sodium vapour. I'm yet to see any failures either.
Papersatan:
That job has gotten back to me and is offering me $20/hr. I'm taking it. It will be enough to get us by, give me time to be pickier about a fulltime job, and give me some good experience. They want a 6 month commitment which I can do.
This has been a busy week for me. I am talking at an event on Sat, and one of the other speakers is the author of a new O'reilly book which I am halfway through and I love. I also have interacted with him on twitter some, and he has been in town all week, so I crashed a class he was guest lecturing in, and went to a book talk he gave, and I'm so pleased that I did. He seems like a genuinely great person with a similar background/way of thinking. When talking about his journey to writing this book, he said that he used to give a lot o 45 min talks about "this stuff" based on what he sort of felt was right. That he had ideas about things, and would share them, but then when someone told him he should write a book, and he decided to do it, he realized he had to get some hard research done, and so he spent 3 years writing the book. What's great about this is I am at the "gives talks about what I feel is right based on an assortment of shallow research" stage of my career, and it's been making me really anxious: for this event on Sat, and the national one in April I am talking about some theoretical shit, but I know I am much, much, less well read than I should be, and I have been in knots about how I can be given this opportunity when I'm basically just spewing my thoughts like I would for some friends. Now I am looking at it like: you're just him 8 years ago. and I can handle that. I'd love to be the him of the future in 10 years. I need to remind myself that this has been my field of study for literally a year. No one expects me to have all the answers.
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