Dhá chineál radaíochta leictreamaighnéadacha iad solas dearg agus solas infridhearg atá mar chuid den speictream solais infheicthe agus dofheicthe, faoi seach.
Is cineál solais infheicthe é solas dearg le tonnfhad níos faide agus minicíocht níos ísle i gcomparáid le dathanna eile sa speictream solais infheicthe. It is often used in lighting and as a signaling device, such as in stop lights. In medicine, red light therapy is used to treat various conditions such as skin issues, pian comhpháirteach, agus tinneas matán.
Solas infridhearg, ar an láimh eile, has a longer wavelength and higher frequency than red light and is not visible to the human eye. It is used in a variety of applications, such as in remote controls, thermal imaging cameras, and as a heat source in inductrial processes. In medicine, infrared light therapy is used for pain relief and to improve circulation.
Both red light and infrared light have unique properties that make them useful in various fields, from lighting and signaling to medicine and technology.