The light strength is about 1/81 of that falling on a square inch of Earth as he said. That is a lot of f stops for a given shutter speed. But if you are an orbiting planet you can add what hits you to what is also reflected, and a tiny bit emitted, by Saturn. Let's not forget geothermal infrared emitted by said planet and Saturn.<quoted text>
120,000 lux for direct sunlight.
The figures are different in your link?
Which is more comfortable for a human being, standing in the shade, or an office, or out in the hot sun?