As this gains interest in the public -- people need to start being really careful about being sold the idea where LEDs produce the useful frequencies of UV ligh

As this gains interest in the public -- people need to start being really careful about being sold the idea where LEDs produce the useful frequencies of UV light -- but actually don't. There'll be products on Ebay, even Amazon, that tout LED UV -- but I'm sure tons of people will be suckered into buying those with the belief that they work. I believe you may even need to buy a true (for example) deuterium + quartz tube to get the frequencies discussed.