My go to light for work is a Streamlight Protac 2L-X. It has a few modes to set it up how you prefer. Plain bright. Low, bright. Bright, strobe. Rechargable 18650 but you have to take the battery out to plug a usb into it but it lasts a loong time between charges so I don’t mind
Strobe is great for raves, self defense and epilepsy tests! (jk)
It’s called 10 tap. So quickly half press (not clicking) the button 10 times, then press and hold. It goes to the next mode preset.
For normal use clicking the button is the first mode (low) and half press then click for the second (high)
like this (skip about halfway)