Reply To: I need your help, what light type should I use? Home › Forums › Infrared Light Therapy › I need your help, what light type should I use? › Reply To: I need your help, what light type should I use? September 29, 2020 at 3:40 pm #754 memyselfandiParticipant I guess the question is between red light and NIR light and how to they differ. Not about blue or red light.