The lens connected to the head of the flashlight comes apart using one thumb/finger. Using two other fingers to hold the head's base, the third thumb/finger pushes the lens in the opposite direction with a force >5N.

The remaining lens and light reflector component (red circle) of the flashlight pops out of the unit and separates. Simultaneously, the translucent skin (black circle) attached to the head of the flashlight peels off using hands.