text: Hi Christina, it really depends on a bunch of factors…..predo
  minantly the temperature of the wax pool and the volatility of the oil.
  
  Your customers will have a variety of melting systems (different burner designs, different tealight sizes etc), so whist you got 6-hours, someone else may only get 2 hours or could get 8 hours.
  
  This is one of the limitations of wax melts…..you don’t control the delivery system. But, they are inexpensive and easy to make, so people generally don’t complain if the scent evaporates quickly.