Hi,
I used a mix of reflective material and spot to replicate the lightbulb, with same emissive color. I also used the method of @FeelsPartyMan: TIP: Let spot light shine through objects
Warning: Don’t pay too much attention at the colors, I can’t come up with something nice for now 
(So much materials to create, so much colors 
Hard to make a choice)
Side view:
512 Samples, nice and clean
Front view:
1024 samples, because render time was much quicker (no vertical wall to render)
Did … the lamp just move ?
“Look! It’s moving. It’s alive. It’s alive… It’s alive, it’s moving, it’s alive, it’s alive, it’s alive, it’s alive, IT’S ALIVE!” - Henry Frankenstein; Frankenstein (1931)
Hope you like it 
Cheers !