Soul Campfire don't have the same lighting level as other soul things

I am builder and I like to build and one of the most decorative block is Soul Campfire and I like that block a lot but I Think found a bug and that is that Soul Campfire have more lighting level than the Other Soul Components such as Soul Torch, Soul Lantern and the Soul Fire. I actually kind of like this bug but as a bug reporter it is our job to report these bugs. So, Mojang Please Fix This Bug.