DuinoTech Arduino Compatible Red Laser Diode Module – 650nm Class 2

You need a small, controllable red laser for a sensor project, a pointer, or yes — that DIY cat toy you've been meaning to build. This module gives you a 650nm red beam at under 5mW (Class 2), which is safe to work with and easy to aim. Three-pin header plugs straight into your Arduino or any compatible controller. No driver board, no fiddly wiring. You set the duty cycle in software and the beam does what you tell it to

• 650nm red wavelength, under 5mW output (Class 2)
• 3-pin header — plugs directly into Arduino or compatible board
• No external driver required; PWM control from your microcontroller
• Compact module format for tight project builds