SecurityIng&reg; Zoomable 5W 300 Lumens LED Headlamp Adjustable Focus LED Lighting Lamp for Camping Hiking (18650 or AAA Battery Not Included) Output bright can come to above 300 lumens. Small size, not too heavy. Water-resistant, you can use it in the rainy day. Adopting extensive lifetime Cree LED, the lifespan of the LED can achieve to be 100,000 hours. With adjustable focus, support to zoom in and zoom out. With an adjustable base, with back and forth inclination.