What is the difference between the two?
What HE saidFor whatever reason, coil bulbs generate light in the short-wave UV (UVC) range, in addition to the medium-wave UV (UVB) that our tortoises need. UVC is a shorter and damaging wavelength of light, especially for the eyes of our animals. The technical term for the eye damage that occurs as a result of coil bulbs is photokeratitis, and often shows up as terrible swelling of the eyes.
Universities and hospitals have been developing methods of sanitizing masks to kill the Covid-19 virus that use UVC light. Imagine subjecting your tortoise to high intensity light that can kill microscopic viruses. Linear tube UVB lamps do not output harmful UVC at levels that cause eye damage, so they are more appropriate for tortoises.
For whatever reason, coil bulbs generate light in the short-wave UV (UVC) range, in addition to the medium-wave UV (UVB) that our tortoises need. UVC is a shorter and damaging wavelength of light, especially for the eyes of our animals. The technical term for the eye damage that occurs as a result of coil bulbs is photokeratitis, and often shows up as terrible swelling of the eyes.
Universities and hospitals have been developing methods of sanitizing masks to kill the Covid-19 virus that use UVC light. Imagine subjecting your tortoise to high intensity light that can kill microscopic viruses. Linear tube UVB lamps do not output harmful UVC at levels that cause eye damage, so they are more appropriate for tortoises.