2.5W 445nm Blue Laser Module Laser Engraving And Cutting TTL Module 5500mw Laser Sufficient Power Laser Engraver Accessories 

Dear Firend:Please pay attention to the positive and negative poles when you connect the laser.

–Laser wavelength: 445nm (blue violet)

–Spot type: dotted (adjustable)

–Light power: 2.5watts (2500mw)

–Drive mode: external ACC constant current drive

–Cooling method: forced air cooling

–Operating voltage: 12V DC

–Power supply interface: 2 * 2.54

–Control interface: 2 * 2.54 (TTL control switch, PWM control power)

–Shell material: aluminum, surface anodized

–Module material: copper