Good comment Jeff. Probably worth noting that the amount of time you should exposure yourself is dictated by the intensity of the tanning bed. While the spectrum of a tanning bed is similar to the sun – the intensity is not (1 hour in a tanning bed is probably = 2 to 3 hours in the sun). Therefore the amount of time needed in a tanning bed is about ½ to 1/3 of what you need outside. It is tough for me to be an advocate for tanning beds because it is easy to get over exposed and the industry has moved further away from the spectrum that produces D.