The Truth: Device quality, irradiance, and wavelengths matter (a lot)
There's a wide range of Red Light Therapy devices on the market, which range from dodgy $50 units to professional panels designed for clinics that will set you back 5 figures. The problem? Cheap devices underperform and fail to emit the needed wavelengths required for therapeutic benefits. Sometimes the catchphrase is true: you get what you pay for: and those cheapo looking panels with no reputation? Yep, you get what you pay for. Here's what to look for in a quality RLT product.
Wavelengths:
- Should include both 630–680 nm (red) and 810–850 nm (NIR).
- If a device can’t hit these sweet spots, you’re just buying an expensive lamp.
Irradiance (power output):
- Look for at least 150 mW/cm², but 200+ is even better.
- This is what lets the light actually penetrate your skin and work it's magic, don't settle for less
LED Quality:
- Choose a panel that contains 5W LEDs, not 3W.
- Cheap LEDs will often fake the look but can't deliver the right therapeutic light.
Build & Coverage:
- FDA-registered panels are the gold standard.
- Make sure the panel is big enough to actually cover the area you'd like to treat to treat.
Brand reputation
- Look for a brand that's trustworthy.
- Read the reviews: do other people recommend the panel?
There's no one conclusive comparative study that compares higher end panels directly against budget alternatives, but the evidence is pretty clear. Multiple reviews, including ones published in Photobiomodulation, Photomedicine, and Laser Surgery show that wavelength selection, and irradiance are essential to reach the full benefits of RLT.
Bottom Line: Not all devices are created equal. If you're looking for genuine results, look for genuine panels that operate at the right power output and wavelength.
Myth Busted ✅