So I've just started building a flashlight today. And I can't decide how many diods I should out in. Space isn't an issue, I'll be using 2 sets of 4 1,5v batteries (2x6 volt) and I'll be using high power 6v diods. How many do you think would be enough? 20? 50? 100? I do love overkill but they cost slightly above 5 sek each 0_o. That is 0,76 USD according to forex.