Comment Re:Eh (Score 1) 400
LEDs [...] no toxic materials
Gallium arsenide is a carcinogen, and arsenic is released when the crystal is exposed to water (after the LED light is thrown out and ends up in a landfill.) Manufacturing of semiconductors is producing poisonous waste, and it requires large amounts of energy.
The new ones will use Gallium Nitride
I've seen a 4W Gallium Nitride LED lamp (on someone's kitchen ceiling, next to 11W CFL equivalents) and it's very effective. In that case it's an advantage that the LED is directional - the original incandescents for which they substitute would have been reflector bulbs. The light is yellower and more like an incandescent than the CFLs next to it.
As for energy cost of manufacturing, the original article claims to have factored that in to the total lifetime cost.