Adjustable Focus Beam LED Headlamp Features 1.Can be used as Headlamp. 2.Super bright, and waterproof design. 3.Output bright can come to 160 lumens (MAX). 4.3-mode adjustable Brightness, High, Low, and Strobe. 5.Adjustable focus range for different usage, to stretch to adjust its focus. 6.Zoom In/Out to adjust its Focus: x1, x250, x500, x1000, x2000. 7.With adjustable head band for convenience ...