You can find more info about Glow in the following video

https://www.youtube.com/watch?v=4gY0A-3b2P0&list=PLUCy1LBtG-_sAU7ACN1w6icST6LNIu0ql&index=7

you need to change shader Highlight color value with using Tonemapper tool

Thanks Ahmed, it worked! i have also a problem with adding spotlight. i have connected the affecting lights to the affected objects  but the lights beam wont show up, i also increased the light intensity but it does not show the light beam on the other surfaces, i dont know what i may be missing, kindly help

I suggest you to watch the following video it may help you to solve the problem

https://aximmetry.com/en/documentation2/video-tutorials/a-complete-studio-scene/complete-studio-scene-02-importing-the-model

As Ahmed suggested please check the tutorial video.

The screenshot that you sent seems fine, but we can't see what shader/material you use.

It is possible that you are using a shader that doesn't handle light. (for example Basic.xshad)