Wicked Lights ScanPro Night Hunting Headlamp with GREEN LED Interchangeable LED's - change from Green to Red to White Zoom Focus Bezel - Change width of beam from spot to flood Built-in Rubberized Halo Shield - Improves grip and eliminates unwanted back lighting 3- Mode Power Twist Knob (High&gt;Med&gt;Low) - Can be turned on directly to High power or directly to Low power Tilt Lock Knob - Adjust the elevation angle of the headlamp and lock it back in place