I’m getting a Shadowhawk tac flashlight soon. 800 freaking lumens. $56 but very much worth it.
Don’t have it as your only light in a shtf bag. Too bright for most uses and it will chew through batteries. I recommend an LED headlamp, the kind on a headband that you can get ant any hardware store.
Save your money, buy 10 of these as they are great!!!