Thorfire Cap Hat Light 5-LED Headlamp Rotatable Ball Cap Visor Light Clip-on Hat Light Hands Free for Hunting Camping Fishing (Pack of 1) 5 bright LEDs, 30 lumens (Max) brightness. Weighs less than an ounce, no burden when clipping onto your hat. Powered by 2*CR2032 button batteries, up to 24 hours working time. 90 degree rotatable head, One-click power button for easy on/off operation. Designed for fishing, biking, camping, hunting or even working around the house.