1Mainly used in grayscale engraving, drawing, simple depth engraving, simple cutting, etc. 2Especially good at grayscale engraving, depth of engraving 0.5-1mm, cutting 0.5mm, unable to engrave metal. 3Supported engraving materials: Wood, gray paper, leather, bamboo, blackening plastics, rubber, PCB, etc. 4The power can be adjusted by PWM. 5Built-in drive protection circuit including surge protection, overvoltage protection for safety use. Item Type: Laser ModuleInterface Specification: 4pin PH2.0 (red: 12V, black: GND, yellow: PWM, green: temperature signal)Wavelength: 405nmRadiator Size: Approx. 30x60mm / 1.18 x 2.36inMaterial: Copper + AluminumWeight: 130gDrive Position: Built-inPower: PWM adjustableDrive Protection: Surge Protection, Overvoltage ProtectionInput Power: Approx. 12V 280mA (including fan power)Line Length: Approx. Approx. 300mm / 11.8inControl Line Installation Method: IntegratedFan Size: Approx. 30x10mm / 1.18 x 0.39inFan Speed: 10000rpmControllable Temperature: <60Focus Range: 10-100mmBest Focal Length: 50mm from the light exitRecommended Application Machine: for NEJE Master 1 x Laser Module2 x Screw2 x Washer2 x Connection Cable1 x Hex Wrench1x Interface Transfer PCB Board 1. Please apply this module under the premise of safety protection 2. 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.