The ’technology’ inside them is more politics than science, which should have been obvious from the press release. They have 4x the number of LED elements, running at 1/4 power. At lower power all LEDs are more efficient. This arrangement gives more lumens per watt but obviously makes them significantly more expensive to make. Can a Hue bulb fit 4x the number of LEDs inside? Would consumers pay the price for 4x the number of LEDs inside? If it weren’t for the exclusivity deal and their mandatory use in certain Dubai buildings, would they be economically viable? Probably not, which is why nobody else is using the same trick elsewhere in the world.