The MN01 is for ONE SF123A (3V)
The MN02/MN03, P60/P61 & N1 are for TWO SF123As (6V)
The P90/P91, MN10/MN11, MN15/MN16 & N2 are for THREE SF123As (9V)
Please do not attempt to power a SureFire Lamp Assembly with either too many, nor too few batteries.
Thanks
Al