5V 650nm 5mW Red Laser Dot Diode Module (10pcs)

🔴 5V 650nm 5mW Adjustable Laser Dot Diode Module – Red, Copper Head (10 pcs)

A pack of ten compact red laser modules with an adjustable focus head, built for pointing, alignment and optical experiments. The copper head holds the lens firmly and lets you dial the dot from a soft blob to a tight point with a small screwdriver.

✨ Key Features

• 650nm red laser diode, 5mW output class
• Adjustable focus: turn the front ring to sharpen the dot for your working distance
• Copper lens head for better heat spreading and stable output
• 5V operation – runs directly from an Arduino/ESP32 5V rail or a USB supply
• Leads pre-tinned for quick soldering; each module comes individually bagged
• Ten modules per pack, handy for spares and multi-point setups

🔬 Specifications

• Wavelength: 650nm (red)
• Output power: 5mW
• Operating voltage: 5V DC
• Working current: around 20-40mA
• Housing: copper head with brass/aluminium body
• Dot size: adjustable by focus ring

⚠️ Safety: class 3R laser product – never point at eyes, people, animals or reflective surfaces, and keep away from children.

💡 Perfect For

Line and dot alignment, leveling tools, laser tripwires, optical bench demos, and DIY laser engraver/plotter experiments where a visible reference beam is needed.