Pure 163 and Pure 166

The Pure 16 is a direct replacement for a halogen Par16. This is a specialty bulb used in areas were space may be an issue. It has the same front face diameter as the MR16 so you have a large selection of unobtrusive installation types to choose from. Just like the other 3W and 6W models, the Pure 16 is meant to replace a 20W Par16 accent bulb (3 Watt model) or a 35W Par16 primary light (6W model). It is available in beam angles ranging from 15-degree spotlight to 60-degree floodlight, which gives you the ability to create great architectural lighting effects. It also carries the CE and RoHS safety certification and is in the midst of MET approval. Once installed you will be happy to put your ladder away for another 10 years as you can see up to 50,000Hrs out of this bulb.
http://www.lumiabulbs.com/Purepar.html