Q1: What's the wavelength of the lights?A1: 660nm in red lights and 850nm in infrared lights.
Q2: Does it has both red and infrared lights?
A2: With 43pcs near infrared lights + 172pcs red lights, total
215pcs.
Q3: Can I use this device in Europe?
A3:Yes, you only need a EU adaptor and it can be used in Europe.
Q4: Does it need to be plugged into the socket?
A4: Yes. There is also another model that is directly connected to
the DGYAO power bank and can be used similarly( Sold separately).
Q5: Can multiple people share the device?
A5: Yes.The device can be used by different people and your pets
too if you like.
Q6: What voltage can this device be used?
A6: The device can be used within AC110-240V.
Q7: Is it more effective on bare skin than over cloth?
A7: Yes, it is more effective on bare skin than over cloth.
Q8: Are there side effects?
A8: Don't worry about it, but please notice you may will have skin
irritation if you 're allergic to the fibers.
Q9: How long will it take to experience relief of device?
A9: We recommend wearing it for 2-3 therapy sessions per day for
the first month.20 minutes each time.
Q10: Can people with heart disease or heart pacemaker use it?
A10: Yes
Q11: What situations should I not use the therapy?
A11: Pain which may benefit from heat can be relieved by red and
infrared light therapy.
Q12: Can it treat hair loss and cure headaches?
A12: Yes, the hat is specifically effective in treating hair loss
and relieving headaches through red light therapy.