oohh. im not sure.
i know it seems to handle the kpr103's ok.
on a side note, here are the lux readings from some bulb experiments witha a tec-40 (all are with alkies):
kpr113: 750 lux
kpr103: 1600 lux
xpr103: 3100 lux!
i dont know how long the xpr would last. i have run it for about 15 mins at a time. it gets pretty hot, but nothing melted.
i have 3 tec 40s: 2 have alkies and kpr113 for reliability. 1 is in my car using lithiums and kpr113.
great lights.
if you test the krypton star, let us know! im still looking for a very high output bulb with good reliability--even if it sacrifices some runtime.
Bob