I am planning a hotwire mod on a 2D Mag. The battery tube has been bored to hold one of Fivemega's 8AA-->2D battery holders. I am using PowerGenix NiZn AA cells. This gives an OCV of 14.4 V on a fully charged set of cells (1.8V each cell). My AA Ragone plot showing the performance of these cells compared to a few other popular AA batteries is here.
Here are the constant power discharge curves for the PowerGenix AA cells that I have measured (up to 16W):
I plan to use one of Kiu's high temperature bi-pin socket mods and a FM Throw Master head.
I would like to do something in the 75 W range (~10W per cell, ~10 minutes runtime). I have done a fair amount of reading, and have gone so far as to make my own spreadsheet with LuxLuthor's destructive testing. For this flashlight, I want a very white beam with a lot of throw. I have read too many threads where people have been disappointed in their hotwire mods, mostly because the beam was too yellow and/or the throw was terrible. I think with these PowerGenix cells I should be able to do something pretty impressive.
Given the discharge curves presented above, what would you recommend for a bulb in this setup?
Really looking forward to your input.