The probable reason for going ZOMBIE is that the Photo luminescent powder that gives of the brightest light is the green one
The powder is mixed in with a plastic and "Glow in The Dark somethings " are formed from it
There are no Photo luminescent anythings that will give you a satisfying light for what you want for as long as it will need to be. So you will need batteries or Lots and Lots of Tritium
Go get yourself a nice carbine and know where it is. This one has a 200 lumen Glow in the Dark forend