blockstates redstonedust and block/item textures

can I give item models textures the same glow as block models?
what would I add to the blockstate file for redstone wire to target different power states?
and how would I setblock just a redstone_dust_dot?
does it merge redstone_dust_dot and the wire variants automatically when placing a single piece? (second image)
ideal for me would be to be able to override redstone_dust_dot for 15 different power levels