January 25, 2010
I’ve been reading the “Summary of Results: Round 9 of Product Testing,”(warning – this link opens a PDF file) by the US Department of Energy’s Solid-State Lighting CALiPER Program. If you are interested in the current state of LED lighting products, it makes for some fascinating reading. One big concern I have had both [...]
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January 8, 2010
Introduced in 1938, the fluorescent bulb was the first major lighting advance to achieve widespread commercial adoption following the 1905 introduction of the tungsten incandescent bulb. Fluorescent bulbs represented a huge increase in efficiency and operating life over incandescent lamps, enabling cooler, brightly lit offices, factories, and schools, as well as home kitchens and baths. [...]
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