LED current source circuit design concerns
I would not choose any of these 3.


This R value seems to be for 12V operation across the switch.  


12V-2.8=10.2V   /470 = 21.7mA  assuming Vf is correct 

Possibly these LEDs are ~ 2.8V @ 10mA.


Thus simple solution is PWM or Pot control OA or transistor to reduce voltage and/or current.


The button can drive the LED at the same time if it is 12V
or any transistor and 10k Rb  Pullup to + or pulldown to Gnd.