For LWS01 and LWS02 the range is 43.0 um to 196.7 um.
For LWS03 and LWS04 the range is 47.0 um to 196.7 um.
Note: the Exposures in LWS01 and LWS03 must be within the range, and not touching the endpoints. E.g., 43.0001 um is the smallest exposure wavelength.