Skycoolwin 1600 Lumens CREE XM-L T6 U2 LED Headlamp/ Waterproof 3 Modes Design/ Zoomable Rotatable Headlamp/ Headlamp for Outdoor Sport /18650 Rechargeable Battery Head Torch Flashlight with Charger And Car Charger Powerful waterproof, impact-resistant, 1600 Lumen camping headlamp provides the brightest light!! 3-in-1| Multi-Function Capability ;Can use as headlamp ,Waist lamps or Desk lamps. Zoomable ,Adjustable ,Durable ,Hands-free ,Comfortable; 3 Modes : Low ; Mid ; Strobe. Perfect fit for outdoor sports, such as camping, traveling, hiking. Model of Battery required: 2 x 18650 3.7V Rechargeable battery