Wheel help

[millworm]

I done this photoshop earlier of my loon and was wondering what sort of spec minilites I'd be needing to re create it in real life? I'm thinking 15s? and 7 or 8 j? any help would be great :)
https://scontent-b-lhr.xx.fbcdn.net/hphotos-xpa1/t1.0-9/10532343_10153328276947281_2286386902201649346_n.j pg