The UC15 is an unusual 2xAAA or 2x10440 light from Acebeam. It has a high-CRI (optionally) main emitter with red and UV secondaries and makes for an interesting lightweight carry option that's not yet another tube light.

The Fenix LD02 v2.0 is a 1xAAA light with a reverse-clicky tailswitch, high-CRI warm-white Cree XQ-E HI, and a 365nm UV secondary emitter. It has a useful selection of modes and reasonable output for its class, though the beam pattern isn't ideal. In a market short on 1xAAA tailswitch lights, this is my favorite.