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I had a work-up once that showed the total life cycle cost of of an incandescent light bulb vs a flourescent. Very surprising to some that the incandescent was actually more enviromentally and energy friendly.
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Michael D. Holloway
https://simple.m.wikipedia.org/wiki/Michael_D._Holloway
https://5thorderindustry.com/
https://www.amazon.com/s?k=michael+d+holloway&crid=3AWD8RUVY3E2F&sprefix= michael+d+holloway%2Caps%2C136&ref=nb_sb_noss_1
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