1This is a 2.3W laser module that could give out 445nm blue laser light 2Large heat sinks and cooling fan ensure better heat dissipation during work 3Support continuous light output working mode and can work for long time 4This module comes with power adapter for convenient use 5Suitable for industrial laser engraving machine equipment, great for DIY laser engraversFeatures: This is a 2.3W laser module that could give out 445nm blue laser light. Large heat sinks and cooling fan ensure better heat dissipation during work. Support continuous light output working mode and can work for long time. This module comes with power adapter for convenient use. Suitable for industrial laser engraving machine equipment, great for DIY laser engravers.Specifications: Shell material: Aluminum (Surface anode black) Module material: Copper Lens Material: Optical glass with coating Laser Wavelength: 445nm (Blue) Output Power: 2300mW (2.3W) Driving Mode: External ACC constant current drive Power Supply Voltage: 12V DCAC Adapter Plug: CN Plug AC Adapter Input Voltage: 100-240V Power supply control interface: 2.54-3P (PWM or TTL signal can control power) Light Form: Dot, adjustable-focus Modulation: TTL PWM Control: Support Other Function: Weak light positioning Weight: Approx. 380g Package Included: 1 x Laser Module 1 x AC Adapter 2 x Connect cable Note: 1. Please wear laser goggles during usage, avoid to touch the laser directly to the eyes and skin. 2. The laser module should works less than half an hour in one time, and continue to work when it cool down please. 3. Please kindly make a note if you need any plug adapter. 4.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.