I'm unsure what to expect. Modern tech seems to be slow making inroads for those of us who actually use a pen light on a regular basis. IIRC WA has one for about $35 - no other info but I'd assume or hope for a bright xenon or equivalent.
After many years of using 2AAA/222 penlights & throwing them away every six mo or so I tried an SL Stylus and then a Pelican L4 LED 3AAAA type - my L4 is noticeably brighter. I like the switches, if they last it'll be an improvement over the old 222 incans but they both could lose some length.
I'd prefer a top clickie (like the L4) 2AAA size (not too long or fat) and a brighter, regulated LED, plastic or metal is OK.