I don't have that exact light, but I do have
this XML-T6 torch.
Torchy (the seller) knows his stuff, and the Fluxient range of lights seem to be of a fairly good quality, from my understanding. The downside of these torches is they have a strobe and SOS mode which are completely useless on a bike. The battery life on my torch using the same LED (on full) is around 45 minutes from a single battery.
Medium mode is enough for unlit roads in my opinion, so you will get a bit more battery life, and the low mode is more than enough to get you noticed on lit streets - Although the different optics and reflectors may lead to different results.
I can post some beam shots from my light if it would help.