So If I understand the math, these lights will pull about 2 amps, per hour?

I am research lights for an e-bike build, so am thinking about these for that project.

I like the size, and the results I have seen with images and video on google.
Just not real sure how the electric will work.

I will be using a 48v 15ah LiPo battery for the bike, with a 1000w motor, and will put a 48v to 12 v regulator in there. The bms is included with the e-bike kit.
Thanks for any opions on this set up, for the lights.