Super mini size, bright, blinding effect. Skid-proof design & waterproof design. Output bright can come to 300 lumens (MAX). Adjustable focus range for different usage, stretching to adjust its focus. Need to pull the head of the flashlight and it extends to adjust the zoom. Clip for convenience carry. Working voltage is wide and can utilize the batteries in the largest extent. Suitable for hunting, cycling, climbing, camping and outdoor activity etc.