It was several years ago, and the manufacturer no longer sells on eBay under the same account. It looks like they’re still in business though: https://www.sgrowled.com/product-category/led-red-therapy-li...

These were like half the price of western branded drop shipped versions, and a tenth the price of the ones they peddle to rich people. They are nothing like the few watt toys health and beauty companies sell. These put out some serious power.