Well, actually it's near infrared so at this "high" power (3mw) you will definitely see it. You can actually see past 800nm if the source is bright, but I don't

Well, actually it's near infrared so at this "high" power (3mw) you will definitely see it. You can actually see past 800nm if the source is bright, but I don't recommend it. The wavelength range where optical radiation is visible does not have sharp borders. Here, the wavelength band of 380 nm to 780 nm is used. https://www.icnirp.org/en/frequencies/visible/index.html https://www.icnirp.org/en/frequencies/visible/index.html