The Loneoceans driver has to built yourself.
Judging by their stated numbers this should be based on the MP3431. I can’t be sure, no pic showing it, but the current numbers seem about right with what I tested.
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This one for 12v operation I can’t be sure about either. From the pic it shows a fb resistor of .050 ohms for 1.1 amp output. The GXB172 in 12v operation uses a .020 fb resistor for about 2.5 amps out to the led. So these numbers seem about right for the MP3431.
There is also boost drivers based of the TPS61088 boost converter that do well, there just not as powerful as the MP3431 based drivers.
Boost
Alot of good info in this thread. Buck and Boost Drivers, Testing, Modding, and Discussion (Pic Heavy)