Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Model Number	KY-008
Operating Voltage	5V DC
Laser Wavelength	650nm (Red)
Beam Diameter	Approx. 6mm
Pin Configuration	3-Pin (GND, VCC, Signal)
Compatible Platforms	Arduino, Raspberry Pi, ESP32
Material	PCB and Plastic Housing
Dimensions	15mm x 15mm x 10mm
Weight	2 grams
Package Includes	1x KY-008 Laser Module

6 reviews

Anonymous

Mar 28, 2026

Rating: 4/5

Good value for money

Solid little sensor for the price. It arrived well-packaged. The only reason I didn't give 5 stars is that the focus is fixed, but for general indication purposes, it is excellent.

Anonymous

Mar 27, 2026

Rating: 4/5

Nice bright dot

The laser dot is crisp and round. Installation was straightforward. Just remember to use a current-limiting resistor if connecting directly to a microcontroller pin, though the module usually handles it.

Anonymous

Mar 16, 2026

Rating: 5/5

Reliable and consistent

Bought a batch of ten for our workshop. All units functioned correctly out of the box. The 5V requirement makes it very easy to integrate without extra regulators.

Anonymous

Mar 13, 2026

Rating: 5/5

Easy for beginners

As someone new to electronics, I found this very easy to set up. Plenty of tutorials online specifically for the KY-008. It lights up immediately when powered.

Anonymous

Mar 10, 2026

Rating: 5/5

Perfect for Arduino projects

This module works flawlessly with my Arduino Uno. The beam is bright and clearly visible even in moderately lit rooms. Easy to wire up using the standard 3-pin layout.

Anonymous

Mar 10, 2026

Rating: 5/5

Great for line following robots

I used this as a visual indicator on my line-following robot chassis. It pairs perfectly with other KY series sensors. Very reliable performance over the last month of testing.

5 FAQ

Q: What is the lifespan of the laser diode?

A: Under normal operating conditions at 5V, the laser diode is rated for thousands of hours of use. Avoid continuous operation for extended periods to maximize longevity.

Q: Is the laser class safe for classroom demonstrations?

A: This is typically a Class 2 or Class 3R laser product. It is generally safe for brief exposure, but users should avoid staring directly into the beam or pointing it at eyes.

Q: Can I modulate the laser using PWM?

A: Yes, you can control the intensity or turn the laser on and off rapidly using PWM signals from your microcontroller connected to the signal pin.

Q: Can this module be powered directly by a 3.3V pin?

A: While it might emit a dim light at 3.3V, this module is designed for optimal performance at 5V. We recommend using a 5V power source for full brightness and stability.

Q: Does this come with jumper wires?

A: No, the package includes only the KY-008 laser module itself. Jumper wires are sold separately or may be included depending on the specific seller bundle you choose.

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