ScannerOptionsIlluminationTime Property

illuminationTime selects the scanner illumination pulse length. The scan engine illumination is a pulsed light. It is characterized by a light pulse length and a frequency usually equal to the frame rate frequency. This property affects only the pulse length. With a longer light pulse the scan engine can decode a more distant target and DOF performance is enhanced on low environment light condition. In the counterside, a shorter light pulse makes the scan engine more motion tollerant.

[Android Documentation]