maglite 3d / surefire

hiram18

Newly Enlightened
Joined
Sep 2, 2010
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I have a mag 3d with a 3 watt mag led. I also have a surefire L1 Lumamax 10/60 lumens. I went to the shooting range the other night and shined both lights on a wall. the surefire was brighter, but the surefire will not make the 100 yd line visible.

Which drop-in/upgrade, in order of cost will allow me to see what is 100 yds away. I read somewhere that you need 100 lumens to see 100 yds.

Thanks
 
I have a mag 3d with a 3 watt mag led. I also have a surefire L1 Lumamax 10/60 lumens. I went to the shooting range the other night and shined both lights on a wall. the surefire was brighter, but the surefire will not make the 100 yd line visible.

Which drop-in/upgrade, in order of cost will allow me to see what is 100 yds away. I read somewhere that you need 100 lumens to see 100 yds.

Thanks

You need lux, not lumens.

Since the L1 isn't made to throw, you'd be much better served to get something throwy, than chase throw out of a light that is simply too small. It's a pocket light, not a 100 yard thrower.

Check out something more like a Quark Turbo for that throw.
 
I am interested in an upgrade for the mag 3d. I was using the surefire L1 for comparison brigtness.
 
I read somewhere that you need 100 lumens to see 100 yds.
The normal measurement within CPF for brightness on an object is Lux at 1M.
Because a flashlight beam will spread at 2M the light required is 2*2 (area) that at 1M.
So at 100M to get 1 Lux on target, you need 100*100 Lux at 1M. or 10,000 Lux at 1M.
As 1 Lux is very dim, you may need double or quadruple that or 20,000 to 40,000 Lux to see clearly.
Here is selfbuilt's review of 1*CR12A lights like your L1. Only 1 light makes it past 10,000 Lux
http://candlepowerforums.com/vb/showthread.php?t=201117
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Lumens is a measure of the total amount of light produced and is no indication of how well it throws.
A 100 watt household light bulb produces 1600 lumens. But the light goes in all directions, half wasted by going behind you. The rest is spread out in all directions very little in any one direction.
Take a lamp with a 100W bulb into your backyard and see how far it lights things up. Your L1 with 100 lumens will light up things much farther away than the 1600 lumen light bulb.
So please do not use lumens to estimate how far a flashlight can light things up.
 
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