The Night Seeker 2 Rechargeable Cap Light has a brightness of 11 to 21 lumens and an effective distance of 20 to 25 yards depending on mode used. Features an ultralight design that can be clipped to a hat brim, pack strap or used as a stand-alone light. The powerful white and green LEDs never need replaced. The sliding on/off switch prevents accidental activation. The rechargeable Li-Ion battery is rated for 300 charging cycles. Water resistant. USB charging cable included.Features:Rechargeable;Ultralight design;Water resistant