The continuous mode setting allows the user to program their SUNA to run continuously for an indefinite amount of time. When power is supplied to the SUNA, it will start data acquisition without an end time or maximum number of frames to measure. In general, we do not recommend this mode for long periods of time because the lamp of the SUNA can burn out.  As a general rule of thumb, the SUNA lamp should be replaced when it reaches 750 hours.