I just picked up the new Sylvania Ultra LED that Lowes and other folks are beginning to carry. This is the new version of the lamp I started testing just 6 months ago. you may remember a thread about the ones I found that were all over a cruise ship and how using LED's ( since they run 24/7 ) saves them a fairly spectacular amount of diesel fuel. The new LED just shows how fast this technology changes. The old one has just been out for a year or so, used 8 watts, produced 220 lumens at 3000k temperature. at the same color temperature, the new one uses 6 watts and produces 300 lumens. that means the efficiency has went from 28 lumens per watt to 50. The 2 older ones I put in back in February/march have been going 24/7 outside in an enclosed brass bullet and are still going. What is new is these LED's are not labeled indoor ( so outdoor maybe? )only like the old one, have a size factor that is smaller and now identical to a regular halogen mr-16, and they are labelled "dimmable", which actually may be a bad thing. I will hook this up to different taps this week and let you guys know if 10 volts looks different than 12. I have already put the bulb in a fixture at my house today, I will try to take a photo comparison tonight between a 20w halogen 60 degree and the LED that is labelled "narrow flood", which may mean 36 or 24 degrees, I don't know.