A lot of people on STW have been ordering them from On One as they are on a promotional price. A few have mentioned the seals on the back (or lack of) could be an issue but they have still been selling like hot cakes apparently. I'd prefer to wait a while and check the real world reviews before taking the plunge and would be happy to pay the extra £20 once i know people are happy with them and that they work properly.
Same P7 LED as the torch i'm using for call it £40 all in with charger and 3 cells to match, output should be slightly more as 3 batterys in 1 so they can run a higher wattage.
So should be very comparable to a HID Flood bulb but dimmable, cheaper to replace the bulb and 1/2 the price of HID, nice.