Infrared, near-infrared and red light
Near-infrared is part of the infrared spectrum. Red light is visible light. These terms are different, although a single device can emit both visible light and infrared. A red glow alone does not establish a device's wavelengths.
Why does infrared feel warm?
Infrared radiation absorbed by tissue can warm it. The effect depends on wavelength, radiation intensity and exposure time. Heat spreading through tissue does not mean radiation penetrates equally far. ICNIRP describes long-wave IR-C as being absorbed in the outermost skin layer.
How does IRELT use infrared?
IRELT describes infrared lamps and reflectors that direct their output. The manufacturer describes a warming experience. Follow the model’s instructions, including distance and eye protection. Feeling warmth does not itself demonstrate treatment of disease or faster recovery.
Which equipment fits your premises?
Start with placement. A tabletop device, a stand-mounted model and a dedicated enclosure have different space requirements. Ask the manufacturer about dimensions, adjustments, electrical connections and the clearances specified in the instructions. Consider customer access, staff guidance and cleaning between sessions.
What does the power rating tell you?
The IRELT comparison lists electrical power and lamp counts. Electrical power in watts alone does not establish the light reaching a customer or a treatment outcome. When comparing manufacturers, request optical measurement data and the measurement distance separately. Make sure the quantities you compare are equivalent.
Infrared light as a business service
Hotels, spas, gyms and wellness businesses have different customers and service routines. Decide who provides instructions, how appointments work and where the equipment belongs. The IRELT business pages cover sector-specific planning questions; the equipment comparison introduces H1 Table, H3 Professional and BOX.
Looking for treatment benefits or operating instructions?
Choosing equipment and assessing treatment effects are separate questions. This guide covers terminology and purchasing considerations. Ask for evidence specific to the device and intended use when evaluating health claims. Always check duration, distance and other operating requirements in that model's instructions.
Sources and further reading
Source for light terminology: NASA – Infrared Waves