ok, from factory setting,can i go to burst mode by just double click it?
if not than i will have to set it up but like i said - i can get burst mode out of a sudden and it is less than 40 seconds,maybe about 5 seconds.
Factory default
Preset A - Max burst, accessible with a click and click hold, or push hold if it's easier to understand.
Preset B - rotary, which is also your turn on preset. Click to on, click to off as usual. Double click toggles between B and C.
Preset C - lower output, double click will toggle between B and C.
Preset D - lowest output, triple click to get there, and double click to go back to either B or C, or click and click hold to go A.
I suspect (may be wrong) that you may have press a bit too fast and ended up toggling between B and C?
You also mentioned that you get a burst of about 5 seconds. Sometimes, improper thumb pressure on momentary would cause the light to return back to the last preset used because the connection to the switch was terminated.
I am just jumping to conclusion because I am not there to see what is happening so it is all pure guesswork on what you might have done either right or wrong.