How many of the 62 bulbs are 660 nm and how many of them are 830 nm?

Each bulb has 2 components that release 660nm and 830nm so there are 62 of each in total.

What is the usb charging cord type for this piece? i love it! just lost the cord and don't know which to purchase to replace it.

Our mask connects with a USB-Type A cord. It also comes with all the international adapters so that it is easier to get it charged while you are within or outside the USA.

What is the HRZ wavelength? ?

The product description tells you what wavelengths the lights emit.

Do the lights emit heat? I’ve heard some led masks do, others don’t

No, it’s actually really calming. When you remove the mask your skin will feel warm to the touch and it might look a little red, similar to how your skin gets when working out. But it goes away quickly. You will start to notice results around 7-14 days. Your skin will start to have a glow, look healthy and more plump. I love mine! Highly recommend this mask.

ASIN	B09WB6PWCC
ASIN	B09WB6PWCC
Batteries	1 Lithium Ion batteries required.
Best Sellers Rank	#49,790 in Beauty ( See Top 100 in Beauty ) #173 in Facial Cleansing Creams
Customer reviews	3.7 3.7 out of 5 stars (240)
Date First Available	23 May 2022
Is Discontinued By Manufacturer	No
Item model number	MASK-V1
Item model number	MASK-V1
Manufacturer	HigherDOSE
Manufacturer	HigherDOSE
Product Dimensions	33.02 x 6.35 x 24.13 cm; 1.46 kg
Product Dimensions	33.02 x 6.35 x 24.13 cm; 1.46 kg

Higher DOSE Red Light Therapy Face Mask - Cordless at-Home LED Facial Light Therapy - Promotes Cellular Renewal, Healing, & Glowing Skin - Targets Fine Lines, Wrinkles & Redness

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