15W 450nm Blue TTL Laser Focusing Module (15000mW, Fixed Focus)
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Prices updated: 13 Oct 2026
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About this product
A 15 W, 450 nm blue-violet fixed-focus laser module with TTL modulation, intended for engraving and marking on CNC or DIY laser machines. It is a Class 4 laser driven at 12 V DC and cooled by forced air. The listing claims it can engrave stainless steel and anodized aluminum surfaces.
Specifications
- Wavelength
- 450 nm
- Optical power
- 15 W (15000 mW)
- Laser class
- Class 4
- Operating voltage
- 12 V DC
- Modulation
- TTL, 0-5 V (0 V off, 5 V on)
- Modulation frequency
- 0-30 kHz
- Focal length
- 1.8 cm (fixed)
- Cooling
- Forced air
Frequently asked questions
How do I switch the laser on and off from a controller?
Use the TTL modulation input: 0 V turns the laser off and 5 V turns it on. The listing gives a modulation frequency range of 0-30 kHz.
What safety precautions apply to a Class 4 laser module?
Class 4 lasers can cause permanent eye and skin injury and can ignite materials. Wear laser safety eyewear rated for 450 nm, never look at the beam or its reflections, keep the module enclosed, and never leave it running unattended.
