450nm Blue Laser Module With 12V TTL Modulation For DIY Cutter Carving

Specifications: Name: Blue Laser Module Wavelength: 445nm Luminous color: Blue Focus: Yes, the minimum focus 2A TTL Yes, low level (0V): OFF, high level (5V): ON. Frequency: 0-20KHz Cooling mode: radiator and cooling fan Material: Aluminum,glass Features: 1.You can adjust the focal length (by Fingers) the smallest 5000M; 4.12 hours of continuous work;Long Life: > 50000 hours 5.Make of Aluminum material,durable and solid,Adjustable focal length, to wood carving, you can use the NC and so on. 6.Aircraft aluminum TTL driver board with cooling fan ensure long working time continuously. 7.Suitable for industrial laser engraving machine equipment usage, It can burn plastic,paper,balloons,cigarettes,wood and so on. Package Included: 1 x 3.5W Blue Laser Module Note: 1.Please allow 1-3mm errors due to manual measurement. 2.Due to the difference between different monitors, the pictures may not reflect the actual color of the item.