5 Watt High Power LED Aluminium Head lamp Item No.:A723-5W Bulb Type: 5Watt Cree Q5 Powerful LED light -280lm Battery type: 3 AAA battery (not included) LED LIFE: 100,000 hours Material: aluminium alloy weatherproof Working Mode: on/off Working Mode: stronger - lower - flashing Patented Function: Zoom in / Zoom out (Chine patent no: ZL 200610035815.9) Proudt size:dia.27mm*78*50mm Option: 3watt CREE Q3 LED