Super mini size, bright, blinding effect. Skid-proof design & waterproof design. The adjustable focus range for different usage, stretching to adjust its focus. 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. Note: Please avoid exposure directly to your eyes and remember to take out the battery if no use for long time. Specifications: Emitting Color: Purple color Colour: Black Wavelength: 395-410nm Material: Aluminum alloy Model of LED: LED Switch: Tail-cap press ON/OFF ( High - Low - Strobe ) Package list: 1/2/3/4/5/6pcs * flashlight (does not include battery)