Had been wondering for illuminating range of lights

[jh333233]

Some lights claim themself to be XXX meter
But in practical, they wont even give a 100 meter shine:scowl:
Like a XM-L w/ D26 reflector, it claimed to be 250-300 but i couldnt even see it for 100 or more

How come the number 300 come out?
Dist. req. for the lux reading drop to 0?

 

[yellow]

You discovered, that sometimes the marketing boast has nothing to do with reality
(how You, I, whoever, sees reality)

Very often - with certain lights - one might think that the distance of illumination boasted means "one can see the light" when it is pointed towards the person and the light is switched on
😉

Really illuminate 100 meter - the distance of a soccer "court" - is quite hard for most any light.

 

[Roger999]

Seeing a light illuminate something at a certain distance depends on the amount of ambient light around, fog/mist, and how adjusted your eyes are to the darkness.

 

[JacobJones]

Marketing isn't it, 100 yards isn't impressive so claim it throws 300 yards to get more people to buy it, then a competitor claims their light throws 500 yards, so realease a new lights that is basically the same as the old one and claim 700, and so on....... You must take manufacturers claims with a pinch (more like a bucket) of salt, they are meaningless.

 

[qwertyydude]

XM-L with D26 will throw less than XR-E with a D26. You want throw in a compact package, XM-L is not going to be your choice. You need highest surface brightness and for now that's still XR-E as old as the technology is.

 

[Burgess]

In total darkness, with dark-adapted eyes . . . .


Shine yer' flashlight at a nice new STOP sign, in the distance.

Retro-reflective highways signs (especially when new) are quite efficient.


Can you *see* the stop sign, "lighting up", at ALL ? ? ?


If so, they you (as manufacturer) can proudly proclaim:


This Flashlight Will Throw a Beam xxx Yards !



BTW -- a brand new Yellow School Bus works even Better for this !

😎
_