120 in total: 51 laser diodes and 69 LEDs. Both types are mounted on the inner face of the shell and both emit at 655 nm. Total optical power for the helmet is 600 mW. The iRESTORE Professional carries 282 emitters at 1,410 mW and the iRESTORE Elite carries 500 at 2,500 mW.

655 nm, one wavelength, on every emitter in the shell. The laser diodes and the LEDs are the same red as each other, so there is nothing to switch between. A three wavelength set of 625, 655 and 680 nm belongs to the iRESTORE Elite alone.

25 minutes, every other day, on non-consecutive days. The timer on the controller runs the clock and ends the session. The iRESTORE Elite works to a 12 minute daily pattern, and the iRESTORE Professional keeps the same 25 minutes on the same alternating days as this one.

1.03 lb. The whole weight goes on the head, since the controller is held in the hand or set down and the power adapter stays at the socket. The iRESTORE Professional comes in at 1.25 lb and the iRESTORE Elite at 1.20 lb.

The device, a universal power adapter, the controller with its timer display, a user manual and a quick start guide. The rechargeable battery pack is a separate order. No case is packed with this helmet, and the one case iRESTORE sells on its own is the iRESTORE Professional Carrying Case, which is shaped to the iRESTORE Professional.

Yes, once you add the iRESTORE Rechargeable Battery Pack - Professional and Essential. It clips to a belt and joins the digital remote magnetically. The fitment rule to check is the purchase date, since the pack fits an iRESTORE Essential purchased after April 2022. The pack carries a 30 day return window and cannot be shipped internationally.

Anyone under the age of 18, and anyone the cautions that ship with the device apply to. Do not use it if you have a medical condition that makes your skin sensitive to sun or light, if you have cancer on your scalp, or if you have sensitive skin or are allergic to light at 640 to 665 nm. Discontinue use and consult a doctor if scalp itching persists for more than an hour after a session.

The helmet is a Class 3R laser product with each laser diode running at under 5 mW, and the instruction that comes with it is plain: do not look directly at the laser light, and do not use magnifiers, microscopes or other optical instruments to look at it. The emitters face in at the head while the shell is worn.

A 2 year warranty from iRESTORE. Returns on the hair devices close 12 months from the date of purchase, the return authorization is requested between 365 and 400 days from purchase, and a 25 percent service fee applies to the refund.

By count, by output and by how often it goes on. This one runs 120 emitters at 600 mW, the iRESTORE Professional runs 282 at 1,410 mW, and the iRESTORE Elite runs 500 at 2,500 mW. The first two share 655 nm and a 25 minute session every other day; the Elite adds 625 and 680 nm and runs 12 minutes daily.