 Different types of light offer different benefits. And by different types of light, I mean there's 10 different types. So each type of light therapy targets specific health issues utilizing different wavelengths of light to achieve therapeutic benefits. All right. This is interesting. So 10 different types. I mean, we have an hour. We don't have a day. 10 different types. Are there any specific types that you think are most beneficial or you want to illuminate here tonight?