Solar Radiation W/m2
Solar Radiation Very-Low
The sun is near the horizon, conditions are overcast, or it is night time, preventing Solar Energy generation.
Current UV Advisory

No UV Protection Required

The UV index is literally zero! Maybe it's super cloudy, or maybe the sun is low on the horizon, obscured, or it's night time.
Lux Brightness
Lux is a measure of the approximate human eye response to light under a variety of lighting conditions. The total amount of light measured is known as the “luminous flux”.