I decided that my old d cell mag light needed an upgrade with an LED lightbulb. I ordered one online for about $15. It was easy to replace. It wasn’t any harder than changing the standard lightbulb.
Here the results you can see in the two pictures after the picture of the flashlight. I shined the flashlight on the ceiling with the old lightbulb and then with the new lightbulb. The results are pretty impressive.
Well the flashlight is brighter the biggest game that I will get out of this is that the LED lightbulb will draw much less power from the batteries. In an emergency situation I will be will use this flashlight much much longer before the batteries run out. So while I have become partial to the type of flashlight that straps to your forehead, something like this will have great use as well.