These are 2nd generation F.I.R.S.T. E-Watt bulbs, they improve upon the 1st gen bulbs by being dimmable and omni-directional.
The warranty has been increased to 5 years, and the expected life of these bulbs is 22 years!
These bulbs are made in North America, and designed in Florida. They are sold by High-School Robotics Teams all over the country, this deal is a special Woot! promotion made by team R.A.B.B.I. from Boston. Proceeds go to support the Boston Robotics Education Alliance.