Around here our power is coal-fired. Burning coal results in mercury in the exhaust. The reduction in mercury pollution in the power plant due to the power savings more than makes up for the mercury in the bulb.
If your power is non-coal based, this may not hold true.
Chris
Yep, here's a place which sells screw-in LED bulbs, but it presently costs nearly $70 to buy one which puts out about the same number of lumens as a 50 watt incandescent, but consumes less than 10 watts.
When the price gets down to around $10 for an LED bulb comparable to a
75 watt incandescent you can bet I'll be standing in line to buy some.Jeff
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