OK, I understand what you are asking about now. I don't have a clue on the answer to that. some of the round head ones give off some light sideways, but primarily they shine forward. Maybe there is someone on the forum who knows more about LEDs will chime in.
Here are two suppliers of LEDS, perhaps they can give some advice:
https://led-switch.com/ (LED Switch)
https://evandesigns.com/index.html (Evan Designs)
I have purchased products from both companies and they have been very helpful