light sources

6 reasons why you worry too much about the mercury in CFLs

by thomas on May 25, 2009

Mercury is bad for you. Very bad. And it’s equally bad for most animals and plants. CFL light bulbs contain mercury. That means no-one should buy or use them, right? Wrong. Read on to find out why. Don’t get me wrong – CFL light bulbs are still hazardous waste. I just think the whole mercury [...]

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Switching the lights off really does save energy

by thomas on May 7, 2009

Will you save energy and electricity by switching the lights off, even if you’ll have to switch them on again in a little while? I’ve recently written a couple of posts about lighting and energy efficiency – one about the most common types of light bulbs and one with more specific information about LED bulbs. [...]

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Light bulbs are hazardous waste

by thomas on May 2, 2009

Light bulbs contain toxic heavy metals and other unpleasant substances. Therefore, they should be handled with care and treated as hazardous waste. For simplicity’s sake, we’ll divide the bulbs into three groups: Incandescent bulbs LED bulbs Everything else Incandescent bulbs Incandescent bulbs contain lead levels exceeding hazardous waste limits. If they’re thrown away in the [...]

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Related posts:

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  2. Giving LED light bulbs a test run
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