The Jetbeam Ko-01 flashlight is a hefty feeling light that uses a single 18650 battery.
Double click the on/off switch and it will activate the strobe. While in strobe, click the on/off and it will go to high.
Hold down the on/off to turn off.
Tailcap is flat so it can be stood upright...
Doing a review of the ATactical A1S flashlight. It survived all the test and lived up to the name of ATactical.
strobe 1,150 lumens
The flashlight has a setting where it flashes SOS in morse code...