This is the only tanning place I have been to that actually changes the bulbs before they go out! If you have done your homework you see below here are the facts:While most tanning lamps last approximately 1000 hours, to ensure maximum tanning benefits, we recommend that lamps be changed at around 700-800 hours. Also, when you change lamps make sure that you change them ALL out at once. This will avoid having some lamps be stronger than others.