@Bobby B
What do you think about this device from Red Light Man? It is 830 nm, 200 mW / square cm, and costs $89. They will include the correct type of power plug for different countries.
I realize the IR hunting flashlight is less expensive, but $89 is still pretty reasonable compared to the lasers costing thousands, and unlike the flashlight, it includes the specific power specifications, so dosage can be determined.
Judging by the diagram, at a distance of zero cm (so pressed up against the ear) the diameter of the beam is about 10 cm. So, maybe a little big, but maybe not really to ensure hitting the cochlea.
At zero cm, it delivers 200 mW / square cm. The beam angle is pretty narrow so will not be diffusing too much.
https://redlightman.com/product/infrared-mini-830/
Red Light Man discusses dosage calculation here:
https://redlightman.com/blog/complete-guide-light-therapy-dosing/
Red Light Man seems to be kindred spirit
@Cityjohn. He is selling high-powered, low-cost light therapy devices because he could not find such products on the market. From his website:
"Due to the massive amounts of scientific studies done on light therapy (LLLT, photobiomodulation, etc.), the company founder was curious to try it out for himself, but quickly noticed the inadequate availability of high powered light therapy devices on the market. Most products were far too weak to be effective in a reasonable time frame, not to mention over-priced.
After months of prototype product development, this site was built to provide the public with access to effective light therapy devices at a reasonable price."