Reply To: I've been using rubylux for 15 days now, I see improvements! Home › Forums › Red Light Therapy › I've been using rubylux for 15 days now, I see improvements! › Reply To: I've been using rubylux for 15 days now, I see improvements! October 7, 2020 at 2:57 pm #911 SunnyParticipant Hi, I’m just curious if I should use a regular bulb or is it necessary to use the Rubylux light?