FireEater - that link is to a light that mimicks a 250 watt MH, and there are 50 LED arrays in it... the OSRAM diodes above can do the same with 20 to 25 arrays. so your looking at is probably 500 lumen LEDs instead of 1000 lumen.

more to the point, what were seing here is generational leaps in efficiency in a relatively short amount of time. I mean MH has been around for decades, and in the course of a few years Diodes have gone from dull red yellow and green indicator lights to viable (expensive) alternatives to MH and Flourescents. I mean these new ones are so powerful they are lighting buildings with them now. thats impressive, I think this technology, once it takes off, is going to make flourescent and incandescent bulbs obsolete for most applications.