Originally Posted by
BarracksSi
How about this analogy --
Take firehoses, as an example.
Turn on one with a given line pressure, and see how far it goes. Get a second, and maybe a third, each seeing the same line pressure, using the same spray pattern, and see that they all go just as far as the first.
Get another hose with a higher pressure and set it with the same spray pattern as the others. It's going to shoot farther, right?
The single hose with higher pressure ("more lumens") will spray farther than multiple hoses with lower pressure ("less lumens").
That's pretty close. But the other issue of more lumens go further fits this analogy also. Take two hose spraying water so that their combined pressure is equal to the high pressure hose. Spray them from the two nozzles and see how far they go. They won't go as far as the high pressure hose by itself. They put out as much water but they just don't go as far. If you were to connect them with a tee so that they combine before they leave the nozzle, then they
would go as far.
Same thing with the lights.
Good analogy