Originally Posted by
rekmeyata
But in broad daylight the size of a bicycle light at 1" in diameter will just get lost in the background. Maybe if you buy a $1,200 headlight putting out 1,400 lumens then you may be right, that might work. Because you see, to have the same intensity of a car headlight you need 1,000 lumens to be the same as an older 9006 car bulb on dim, not 700 or so; but there's still that nasty little 1" diameter lens
Indeed, this explains tens of thousands of car accidents every day -- it's simply impossible to notice those little yellow or red so-called "turn signals" in daylight, because they're so much smaller and dimmer than headlights -- many put out less than 100 lumens, vs. 700 lumens for a 9004 low-beam headlight.
Yet people expect other drivers to notice and react to "emergency flashers" and "turn signals" that are smaller and dimmer than bicycle headlights.
Ridiculous. No wonder all daytime motorists are already dead.