yes.., get a flashlight, BUT !! make sure it has "strobe" capabilities, nothing will disorganize an intruder faster than a strobe !!
Strobe features can be fun to play with, but they are not necessary. Rarely will you have the flashlight on long enough to use the strobe. Proper use of the flashlight is to use the momentary switch and sweep the area quickly, move, sweep, move, etc. Once you identify a threat with a sweep, move again so that if the threat shoots at where they last saw the light you are no longer there, then put the light back on the threat and engage if need be.
My weapon light is the TLR-1s, but using the strobe is not high on my training priority. It can even disorient the user...