Manta Ray C8.2 Performance

C8.2 with XHP35 HI NW…running a Keeppower protected 6500 cell. What sort of performance should I expect?

In have recently fallen in love with the form factor.

For those confused as I was:

http://kaidomain.com/KDLITKER-C8_2-Cree-XHP35_2-HD-1700-Lumens-LED-Flashlight

No, this one…

https://www.aliexpress.com/af/c8.2-flashlight.html?d=y&origin=n&SearchText=c8.2+flashlight&catId=0&initiative_id=SB_20200427151752