ok, lets go from the beginning. 5W leds used are the same XP-G(139lm/w) that are used right now in 3W line with a difference that you can drive them at 1.5A with a correct cooling - as far as cooling - wait for my next post to see the difference between PS and ANY LED fixture you want to compare it with. Blue ones 5W XP-E bin D16 with 500-575mW from each 1W. Why limited edition? Because it is hard to get those specific bulbs. I really don't want to argue about your approach - it is your decision nor I am responsible for what they offer. will leds evolve in the next 12 months? yes, they will. and I can tell you honestly that knowing Przemek for the last 18 months - if CREE comes up next month with new bulb that he will think will be better - next time he orders led panel - new bulbs will be in. so if you want to wait - simply wait.