650nm 6mm 5V DC Mini Laser Dot Diode Module

Compact and reliable red laser dot diode module from The Engineer Store, Bengaluru. This 650nm wavelength, 6mm diameter module operates at 5V DC, producing a focused red dot ideal for alignment, positioning, robotics, and DIY laser projects. Fast shipping, 7-day warranty on manufacturing defects, and dedicated support.

Specifications

Key Features

• Visible Red Dot Output: 650nm wavelength produces a bright, clearly visible red dot for precise targeting and alignment.
• Ultra-Compact 6mm Form Factor: Tiny cylindrical body fits easily into tight enclosures, robotic arms, and custom builds.
• Simple 5V DC Operation: Runs directly from Arduino, Raspberry Pi, or any standard 5V power source - no external driver circuit needed.
• Adjustable Focus: Rotate the lens head to fine-tune the dot size from a tight point to a broader spot depending on distance and application.
• Low Power Consumption: Draws under 30mA, making it suitable for battery-powered and portable projects.
• Plug-and-Play Wiring: Two-wire connection (VCC and GND) for instant integration into any circuit.
• Durable Metal Housing: Copper or brass body provides heat dissipation and physical protection for the laser diode.
• Continuous or Modulated Operation: Can be driven continuously or pulsed via a microcontroller GPIO pin or transistor switch.

Why Choose This Laser Module?

• 100% authentic from trusted component suppliers
• 1-5 day shipping, 7-8 day delivery from Bengaluru warehouse
• Expert technical support for circuit integration and project guidance
• Ideal balance of size, power, and visibility for hobbyist and professional use
• Widely compatible with Arduino, ESP32, Raspberry Pi, and other microcontroller platforms
• Tested and quality-checked before dispatch

How It Works

The module contains a semiconductor laser diode rated at 650nm wavelength, integrated with a collimating lens and a current-limiting resistor inside a compact 6mm metal housing. When 5V DC is applied across the two leads (red wire to VCC, ground wire to GND), the diode emits a coherent red laser beam focused into a sharp dot. The adjustable lens allows you to control focus for different working distances. For microcontroller-based projects, you can switch the module on and off using a digital GPIO pin through an NPN transistor (such as 2N2222) or a MOSFET for safe current handling.

Pin Configuration / Wiring

Project Ideas

• Laser Tripwire Security System: Pair with an LDR or photodiode to create a beam-break alarm system that triggers when someone crosses the laser path.
• CNC & 3D Printer Alignment: Mount the module to project a reference dot for workpiece alignment, homing, and calibration on CNC machines or laser engravers.
• Robotics Targeting & Distance Sensing: Use as a visual pointer on robotic arms or combine with a camera module for basic triangulation-based distance measurement.
• Arduino Laser Communication (Li-Fi): Modulate the laser beam with data signals to transmit information optically between two points using a photodetector receiver.
• Interactive Cat Toy / Pet Project: Mount on a servo motor controlled by Arduino to create an automated, randomly moving laser dot for pet entertainment.
• Laser Harp Musical Instrument: Arrange multiple modules in parallel beams with photodetectors to build a laser harp that plays notes when beams are interrupted.
• Precision Measurement & Leveling: Use the focused dot as a reference point for DIY leveling tools, surveying aids, or optical bench experiments.

Frequently Asked Questions

Buy 650nm 6mm 5V DC Mini Laser Dot Diode Module Online in India

Purchase the 650nm 6mm 5V DC Mini Laser Dot Diode Module online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on 650nm 6mm 5V DC Mini Laser Dot Diode Module with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.

Looking to buy 650nm 6mm 5V DC Mini Laser Dot Diode Module at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.