You have a distorted view of light intensity. Let me prove it.
Let’s say you took someone into a room that had 100 light fixtures. The fixtures are placed such that the person can not see how many of the 100 are lit. You turn on one fixture and tell the person this is the room with one light on. Then you turn on the other 99 and ask the person, how many times lighter (more intense) is the light in this room? They will answer something between 2-5x but definitely not 100x.
Why? Our pupils deceive us. As the number of lights in the room increases our pupils contract to compensate, giving us the illusion that the increased intensity is much less than it actually is.
Outdoor light intensities range across 9 orders of magnitude. A piece of white paper can be 1,000,000,000 times brighter in outdoor sunlight than in a moonless night.