Magica Voxel to Unity. How to make part of an imported material glow

I’m new to Unity so I wanted to try making something simple like a lamp post and having it emit light. I exported the model from Magica Voxel as .obj then imported the .obj and .png material into unity. So far, the only way I’ve figured out how to make it emit light is to use an area light and put it inside the lamp post and enable halo. any other solution I tried made the WHOLE model glow. I’m sure there’s another way to do this that I’m not aware of.

Is this model UV mapped? You should be able to paint an emission map on just the bulb and assign it to the material the same way you would assign albedo/metallic/normal maps if this is a standard shader.