Hello I am new and please forgive me if someone has already asked this. I have two 1 aaa maglite solitaire flashlights and one 2 aaa maglite mini looks like a sloitaire but the head looks like the 2 aa maglite. I want to make these useful by changing the bulbs to leds. I dont want to have to purchase more powerful batteries to fit them. I need a few leds that are super bright at 1.5v using a single aaa battery and a few leds that will be super bright at 3 volts using 2 aaa batteries. I have a lot of these batteries thats why I want to keep the battery as aaa.