Not a singlemode, so it's not what you ask for. But the jetbeam jet 1 is nice. Got memory, so twist it on, and it turns on in the mode you always use. No need to change modes with this.
Peak El Capitan in Aluminum, Brass, or Stainless Steel. Can be had in QTC or QTC-less for single mode. Neutral or cool white options, and made in the USA.