 reduces their germination possibilities so that you now have weed seeds falling out of the back of the combine that won't germinate the next year, and it's all done through this particular bright light system. There's others out there. Some of them are weed hammer mills or smashers that are going to actually physically destroy the weed seed, but these are all alternatives to things that are already being done in the field. It's one more way to prevent germination of weed seeds, and it can be used especially if you're an organic farmer.