The short answer
Laser therapy uses light energy. Wavelength, delivery mode and dose describe its application. Higher power does not automatically mean a better clinical result or an equivalent treatment.
Light energy in physical treatment
A therapeutic laser delivers light with specific properties through a handpiece. Wavelength is stated in nanometres and power usually in watts. Delivery mode and the amount of energy also describe the application.
Technical explanation starts the discussion. Ask which outcome is intended for your condition and how the clinician will assess whether it has been achieved.
Separate wavelength, power and dose
Two systems can only be meaningfully compared using the same properties. Power is not treatment duration. Wavelength alone does not indicate how much energy is delivered to an area.
Ask which parameters matter for your intended use. Terms such as high power do not provide a general ranking of treatments. Controls, safety features and user training also matter.
The Sixtus Italia Lasersix family
Lasersix Trauma is listed at 1064 nm and 10 W, with a portable, battery-powered design. The pen-shaped Lasersix HPP is listed at 980 nm and 3 W. Lasersix Yag is described at 1064 nm, up to 12 W, with continuous or pulsed delivery.
These specifications distinguish models; they are not a ready-made treatment protocol. See the overview and original manufacturer links.
How to assess a treatment claim
Assess claims for the particular diagnosis and method. NICE does not recommend laser therapy for osteoarthritis because evidence of benefit is insufficient. This condition-specific guidance is not a statement about every laser application.
Ask which evidence supports your proposed treatment. A manufacturer’s explanation of a mechanism differs from a comparison with good standard care.
Eye protection and treatment-room safety
Laser light can harm eyes and skin. Protection must match the laser and current instructions; ordinary sunglasses are not sufficient. Sixtus Italia lists separate laser protection for the operator and patient among the supplied Lasersix Yag components.
Users must understand device operation, room access and incident procedures. Before purchase, clarify training and the safety provisions included in the offered configuration.
Questions before treatment or purchase
- Which diagnosis, body area and goal support this choice?
- Which evidence is relevant to the application?
- What protection is required for the patient, operator and others present?
- Who has been instructed, and where is this recorded?
- When will the outcome be reviewed?
Prepare with the safe-use guide and selection checklist.
Frequently asked questions
Is laser therapy the same as TECAR?
No. Laser therapy uses light energy; TECAR uses radiofrequency electrical energy.
Does more wattage mean better treatment?
No. Power is a technical property. Clinical outcomes depend on other factors and must be assessed for each application.
What does 1064 nm mean?
It specifies a wavelength of light. It is not a dose, treatment duration or guarantee of an outcome.
Which Lasersix is a laser pen?
Sixtus Italia describes Lasersix HPP as a compact, cordless laser pen.
Are sunglasses sufficient protection?
No. Use the laser protection specified for the particular device and wavelength.
Is laser therapy routinely recommended for osteoarthritis?
No. NICE does not recommend laser therapy for osteoarthritis because evidence of benefit is insufficient.
Sources for this page
Technical sources consulted on 2 October 2026; contacts checked on 3 October 2026. Manufacturer data describes technology and equipment; clinical sources address defined questions.
- Manufacturer · technologySixtus Italia — Laser therapy ↗
- Manufacturer · deviceSixtus Italia — Lasersix Trauma ↗
- Manufacturer · deviceSixtus Italia — Lasersix HPP ↗
- Manufacturer · deviceSixtus Italia — Lasersix Yag ↗
- Guideline · osteoarthritisNICE NG226 — osteoarthritis, recommendation 1.3.9 ↗
- Regulator · laser safetyFDA — laser products, classification and safety ↗