Sure. So we call ourselves a power conversion expert. What we do is we do all the way from chip to the grid. all the different type of power conversion devices. 

So on the chip level, you usually have some sort of a DC to DC converter. And all the way to the grid, there's usually bigger systems, what we call AC to DC rectifier. 

And it's super important to have very, very efficient power supplies or power conversion equipment. 

Since you use so much electricity, every single percentage of efficiency, again, will just save... tons of money for all these operators. So that's what we do. And most of our power conversion equipment, their efficiency is 98% and above.