Irradiance of a floor for every device frequency or wavelength. The terms spectral flux density or even more confusingly "spectral intensity" are also employed. Non-SI models of spectral irradiance involve Jansky = ten W⋅m⋅Hz and solar flux unit (1SFU = 10 W⋅m⋅Hz). In the evening, scan the horizon for https://denisb975ucu6.wikiexpression.com/user