My SP10a ordered from Ali on March 28, 2018 has the UI MascaratumB described above and starts on Moonlight. The SP10a ordered from Amazon on April 10, 2018 starts on low, without moonlight, and is completely different. Annoying to have the same light with two different UI’s, but whatever. A Sanyo flat-top UR14500P (49.5mm) works in both, while a protected button-top Nitecore NL147 (53mm) does Not work in either. Just some info for future people browsing this.