Cyclops HL150COB 150 Lumen Rechargeable COB Headlamp. The HL 150 is a versatile Headlamp and free standing work-light. PIR Sensor Activation Mode to illuminate totally hands free. Powered by a 3.7V 500mAh rechargeable battery. Charges with the included USB charging cable. LED COB technology delivers 150 lumens on High Mode with a 2 hour runtime. Also has a Low Mode with 3 hours run time, a Red LED Mode with 2 hours run time and a Flashing Mode with 20 hours runt time per full charge. Includes head strap and a versatile hat clip option. 360 degree swivel base. PRC