Red Light Therapy (Underrated skin and collagen max?)

[CaptainCalicoe]

I've read about the numerous benefits of rlt, not infrared (the difference being wavelength, looks like I need one 660nm roughly)
From collagen improvement to possible increased test, is red light on balls legit?
Also does this product seem fine:?

Derma Red Mini: Red & Near-Infrared Light Device

A small Red & Near-Infrared Light Therapy Light with your choice of wavelengths and power cord. Made with 12 near-infrared and red LEDs of specifically chosen wavelengths. At maximum range, this product can cover a circular area with a diameter of 40cm.

carelamps.com

Edit:

This is a similar device but less than half the price, any difference or should I not be a cheapskate?
Any input would be greatly appreciated, thanks.

 

[khvirgin]

i can't apply it on my balls because i have a mask

 

[RoundHouse]

i can't apply it on my balls because i have a mask

Put mask on balls then​

 

[Deleted member 7224]

660 nm is perfect i guess i have one with 630 its over