Irradiance of a surface area for every device frequency or wavelength. The terms spectral flux density or more confusingly "spectral intensity" can also be utilised. Non-SI models of spectral irradiance consist of Jansky = 10 W⋅m⋅Hz and photo voltaic flux device (1SFU = 10 W⋅m⋅Hz). The atomicity of these https://steel-frame-house98765.blogoscience.com/45629128/lightweight-steel-frame-houses-things-to-know-before-you-buy