Turn signals for Xiaomi 4 Ultra

I am looking for some way to add turn signals to my electric Scooter. I have seen the tLight Ultra, but it is too expensive and complicated for me. I also have seen the simple remote controlled versions on AliExpress but they are made for other models and I'm not sure they'll fit.

Has any of you manually added turn signals and are they worth it? What kind of signals would you suggest for Xiaomi Scooter 4 Ultra?

Thanks in advance guys!