Features 1、Mainly used in grayscale engraving, drawing, simple depth engraving, simple cutting, etc. 2、Especially good at grayscale engraving, depth of engraving 0.5-1mm, cutting 0.5mm, unable to engrave metal. 3、Supported engraving materials: Wood, gray paper, leather, bamboo, blackening plastics, rubber, PCB, etc. 4、The power can be adjusted by PWM. 5、Built-in drive protection circuit including surge protection, overvoltage protection for safety use. Specification Item Type: Laser Module Interface Specification: 4pin PH2.0 (red: 12V, black: GND, yellow: PWM, green: temperature signal) Wavelength: 405nm Radiator Size: Approx. 30x60mm / 1.18 x 2.36in Material: Copper + Aluminum Weight: 130g Drive Position: Built-in Power: PWM adjustable Drive Protection: Surge Protection, Overvoltage Protection Input Power: Approx. 12V 280mA (including fan power) Line Length: Approx. Approx. 300mm / 11.8in Control Line Installation Method: Integrated Fan Size: Approx. 30x10mm / 1.18 x 0.39in Fan Speed: 10000rpm Controllable Temperature: <60℃ Focus Range: 10-100mm Best Focal Length: 50mm from the light exit Recommended Application Machine: for NEJE Master Package List 1 x Laser Module 2 x Screw 2 x Washer 2 x Connection Cable 1 x Hex Wrench 1x Interface Transfer PCB Board