I have heard that one interesting thing about these bulbs is that as the manufacturers retain the property rights ( read the small print on the box ) to these bulbs they are the only ones who can claim the carbon credits. Anybody know if this is true....Along with all the publicised warnings about these bulbs and the dreadful narrow spectrum light they put out, I wouldn't be surprised...Smells like another global warming con job to me - especially when the biggest energy using nations apparently wont sign the Kyoto Protocol.