Ok, I'll try and explain it.
I've taken this picture in the worst possible conditions - with the sun shining directly into the reflector. You'd barely be able to see a conventional bulb as the sunlight washes out the reflector.
Now you're seeing the bulb as a blob of white light - what the picture isn't telling you is the intensity of that blob. Once it's bright enough to be registered as white on the camera, it could be ten times brighter and you'd just see the same picture. If you saw the light in real life, you would be able to easily pick it out because it's significantly brighter than its surroundings. Also in real life you capture the glow around it.
It's like looking at the sun, it's only a small blob in the sky but you'd definitely notice whether it was on or not. As I've said before, nobody who's actually stood there and seen the lights switched on has had any trouble seeing them.
I've taken this picture in the worst possible conditions - with the sun shining directly into the reflector. You'd barely be able to see a conventional bulb as the sunlight washes out the reflector.
Now you're seeing the bulb as a blob of white light - what the picture isn't telling you is the intensity of that blob. Once it's bright enough to be registered as white on the camera, it could be ten times brighter and you'd just see the same picture. If you saw the light in real life, you would be able to easily pick it out because it's significantly brighter than its surroundings. Also in real life you capture the glow around it.
It's like looking at the sun, it's only a small blob in the sky but you'd definitely notice whether it was on or not. As I've said before, nobody who's actually stood there and seen the lights switched on has had any trouble seeing them.