Red light or Green light for Fat Burning Laser?

I’m 40, female, white, plus size. My body holds onto belly fat. I’m considering Ultraslim, Zerona, Verju or Erchonia. It’s my understanding that Ultraslim uses red light & the others use green light, but all puncture rather than annihilate fat cells. Which would be my best option in terms of fat burning? Is one more effective? What about side effects? Are they equally safe? I’m open to other forms of noninvasive fat removal & body sculpting, but I have a metal implant.