I decided to start a new thread for this to make it easier to find. And I'm trying to put all the information together. I got a 2 AA Mini Maglite LED Upgrade Combo from Nite Ize yesterday. It cost $10.99, and includes a new reflector with a larger hole in the middle. A stock replacement reflector is $7.00 from Maglite. So the combo kit from Nite Ize, with a 30 lumen LED in a plastic holder, and a push-button tail cap switch, is quite a bargain. Maglite claims the incandescent bulbs put out 14 lumens, but other people say it's closer to 5 lumens, or maybe 8. Either way, the LED upgrade is more than double the output.
I put the push-button tail cap switch on my Pro Brite/Maglite Frankenlight, but it was so much trouble trying to get the LED in the right place so it would turn off and on, that I took the LED out and will recycle the aluminum parts of the flashlight. I put the push-button tail cap switch on the Minii Maglite I got from work, 20 years ago or whenever it was. It came in a case with a pair of batteries. The color is gunmetal gray and after the GM logo it says, Safety is our #1 Priority. I put the LED upgrade in it too, and put ther red filter I made for it back in. I traced circles around a penny or something, and cut 2 of them out of a red filter for a G.I. crookneck flashlight I used to have. When the switch that flashlight broke, I threw away the main body and kept all of the other parts. I keep this flashlight in my bedroom so I can use it instead of a white light at night.
I forgot to post these links until I started the second post.
https://niteize.com/led-upgrade-combo-ii-fits-aa-mini-maglite-30-lumens https://maglite.com/products/replacement-reflector-mini-maglite-2-cell-aa