Unfortunately, you cannot override the "motion sensor" and just operate it manually "off/on". Sorry for the inconvenience.

Yes, the user can operate the light by the wall switch. The light can be manually turned on by activating the Manual Override feature, which requires the user to toggle his/her wall switch OFF then ON (within a 3 second span). This will turn on the light. To manually turn off the light, the user must toggle the switch again OFF then ON. If the user does not toggle the switch again to turn off the light, the light will remain on for 8 hours or until dawn (whichever comes 1st). Please note, that this feature requires that the user keep the wall switch in the ON position all the time (except when he/she is toggling it). This means that the light will be in Motion Sensing Mode, if the user has not toggled the wall switch to put it in Manual Override Mode. Any motion within the lights vicinity will trigger the light to turn on. Hope this helps.