LoadIt,
At 60 lumens your Surefire E2D put out more than the Maglite 3 D on fresh batteries (39 lumens)
But the problem is not with the flashlight but with the alkalines batteries that we use. Even the best brands Duracell and Energizer can only hold up to full power (39 lumens) for 7 minutes when they quickly drop to 70 % output.
After one hour the batteries are giving only 50 % output or about 20 lumens and going sharply downhill from that.
Here is a graph that shows what I am talking about.
The solution is to modify the Maglite to use superbulbs and a 12 volts power source based on Nimhs batteries that keep voltage high to the end.
High quality parts have to be used, reflector, Pyrex lens, non melting switch parts and ceramic base for the super bulbs, along with Nimhs rechargeable batteries that have high amperage and high capacity.
The result is a light that put outs 951 lumens!!!
To put this in perpective it is more powerful and bright that a one million candlepower spotlight, such light will blind a person for a couple minutes.
The reach of the light is over 300 yards and the flood or side spill of these 951 lumens can illuminate an entire room as it were daylight.
black bear