Silverstray

I can not for the life of me figure out how to power this block I'm playing in survival on a server I'm hosting so I'm only using what I have access to, but when I couldn't get power to it at all, I went into a creative single player to see what needed to be done and I still can't figure it out. So to actually use it I've just been shuffling a battery back and forth, which is quite tedious. Any help would be appreciated. (Also this block is not listed on the wiki so no help there.)