fuse and relay question

i just bought a bunch of stuff to install my neon lights. I got a fuse box and i was wondering if i can use a 30amp fuse i have laying around in my car or do i need something else. Also is a relay really needed since i have a fuse box. I am going from battery-->fuse-->switch-->lights and as long as i have a fuse i dont see the need for a relay unless im wrong.

 

[Crankcase]

What is the amp draw of the neons??

 

[Derek]

not sure i haven't gotten them yet . Ill post that when i do get them.