Well that's a lot of watts. In essence sitting under one would cook your head if you sat there long enough. It's true a filter could be devised, but how would you measure the wavelength received? The box mihgt specifiy the lumens or candela which is to say the amount of light cast, the watts or power cast, but I doubt it has the wavelength. I seriously doubt you cold fine turn the filtering enough to get the proper wavelength.

My read of the infrared LED is different than yours on the cold sore device. I think that the LED is largely casting light at the 1072 nm range. Most infrared LEDs unless multiple LEDs encapsulated within the same one, cast at a narrow range.