JI... a size reference for your Mom... I happen to like Solar Force, YMMV... my hurricane LED is a Fenix E21 (no longer produced) with AA Eneloops
top... M3 head (XM L2)with deep smooth reflector on a L2N body and body tube extension for 3 x 123 cells... this is a flame thrower... will light up the alleyway for the entire block...3 modes
center... P60 size, currently with XP-G single mode low voltage light module for 18650... the module has smooth reflector and low voltage cut off circuit... this is my first venture into 18650s, and I will purchase protected cells next time... really throws a tight beam due to the smooth reflector... the XM L2 module it replaced had more flood...this is my current favorite... the L2M (modular) host comes apart, and the low voltage module can be used as a weapons or short pocket light with a single 123... with the regular voltage XP-G module, with 2 x 123
bottom.. Z2 (Fenix E12 size)... my current pocket EDC light in addition to a Fenix E05 on my key ring...it runs on Eneloop AAs and has 3 modes, high comes on first ... the E12 low comes on first
have her pick a battery type, or overall size for light... everyone has a favorite