Description:445nm 2000mW 2W Blue Laser Module For DIY Laser Cutter EngraverSpecification:          Material       Aluminum           Power       2W \/ 2000MW           Wave Length       445nm-450nm           Color       Blue (focusable)           Voltage       AC \/ DC12V  > 2A           With TTL       0-5V input (0V OFF \/ ON 5V)           TTL Frequency        0-20KHz           Cooling       The heat sink and fan           Lens       Glass           Function       Black "-" red "+"           laser module Size       90 * 40 * 40mm           driver board Size       91 * 46 * 42mm (including fan)     Features:1.Make of Aluminum material、durable and solid、Adjustable focal length、 to wood carving、 you can use the NC and so on. 2.Aircraft aluminum TTL driver board with cooling fan ensure long working time continuously. 3.Equipped with constant-current driver board ensure stable output optical power、low heat no external driver board needed、easy to use. 4.Suitable for industrial laser engraving machine equipment usage、 It can burn plastic、paper、balloons、cigarettes、wood and so on.Package Included:1× Blue Laser ModuleMore Details: