Low-Level Laser Therapy (LLLT) for Tinnitus — Long-Lasting Everyday Home-Practiced Experiences

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I am worried those are not safe, but maybe they are; I don't know.

Are there any other reputable lasers, preferably models that have been used in clinical trials?

Tinnitool isn't selling the 5 mW version anymore.

I am not aware of any that are only 5 mW other than the new low-priced USB-powered ones.

To verify the specifications, you can buy equipment that tests the output of the low-priced USB laser devices (and any other laser devices). This is one place that sells laser power meters:

https://www.laserbeelpm.com/products-1.html