Currently I have 6 surefires. So can you guess what I will recommend??
Three weapons lights (618,M900,&x200)
Three stardards (6p,M2,&L1)
I carry the L1 everywhere/everday. Its LED and has two outputs high/low without changing heads/bulbs. Soft press is low (10lumes/16hours) Hard press is high (65lumes/1.5hours).
I use the low setting more than anything and almost never have to change batteries.