parameter Wavelength: 505NM (green light, similar in color to the green light of a traffic signal) Power:<100mW Light outlet beam diameter: about 3-4mm, not adjustable for focus Input: 220V to 12V This product includes a 12V adapter Made with high-quality high-power laser tubes, High conversion efficiency. Not exceeding power usage, using whole blocks The surface of the aluminum block is designed to deepen the heat dissipation teeth and increase the contact area with air, effectively balancing the heat generated by the laser tube Uniformly heat conduction to the surface and dissipate heat into the air. Good power and stable performance. Support PWM signal to adjust power