Hotwire questions : Mag 2D w/ different bulbs

jhereg

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Sep 19, 2003
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I am experimenting w/ some bulbs I had in a 2D Mag. Can anyone tell me the approximate lumens &/or lux on these combinations? Approximate run time & bulb life would also be appreciated. I don't have a light meter, but would like to know approximately idea how much light I am getting out of these on a moderately tight focus.


Stock 2D mag bulb 2D Cells
opinion : Dim & uninspiring.
Radio Shack PR20 4 123 Cells
opinion : Was OK on 3 cells, but a little yellow. Works great on 4 cells.
Radio Shack PR112 3 123 Cells
opinion : Bright & white. Might be a little less overall light than the PR20 on 4 cells.


(Mag-light is new. Cells are new/fresh. Bulbs are new. Reflector was sputtered by me today.)


Info from packages
PR112 6.0v 650mA Average life 15 Hrs Brightness 5.46MSCP
PR20 8.63v 500mA Average life 15 Hrs

Thanks,
Andy

( I know I can't get an exact answer. Different lights/bulbs/batteries/focus would give different answers. I am trying to get a ballpark answer. Knowing how to calculate the answers myself wouldn't hurt.)
 
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