Comfytemp Belt
Another Red Light Therapy Belt
As a third red light therapy belt to test, I purchased a “Comfytemp Red Light Therapy Belt” from Amazon for $37 (the price deals seem to vary as it lists at $60).
Unlike the Headot and GloThera Scienlodic belts this one has a wall power adapter, not USB.
The Comfytemp belt has a clear plastic cover over the LEDs (like the GloThera Scienlodic) but this one doesn’t seem to block the power as much (or this belt has more original power). It is manufactured in China but it is a “name brand” with marketing offices in Germany and the UK.
One thing I noticed, was that in Infrared only or Red only modes the power delivered for just one spectrum of light at a time increases from the individual levels of the combined “full” mode. The controls are just two color coded buttons. One is power on/off and power level. The other cycles through the modes (red+infrared / infrared only / red only / blink at 10 Hz). There is no timer! It automatically shuts off in twenty minutes.
My measurements showed that at contact distance (touching your skin), the Comfytemp belt delivers 18.1 mW/cm2 at 658 nm and 94.5 mW/cm2 at 850 nm.
It’s possible that most of the noticed “benefit” from the GloThera Scienlodic belt may be due to thermal heating. I used a precision thermometer and measured a surface temperature rise of 17o F on the GloThera Scienlodic belt. The Comfytemp belt has a much lower temperature rise of about half that amount.
Infrared power appears to match the original power of the Headot (before it went defective) and is roughly four times more powerful than the GloThera Scienlodic belt (which also has a clear plastic cover). This seems to demonstrate that the clear plastic doesn’t block a lot of light, but rather that the GloThera Scienlodic belt is simply a low power, crap product.
Assuming you buy a decent belt, these are designed for “contact”, they are essentially worthless at any distance other than touching your skin.
Note: as I research more it seems that optimal dosage is going to vary from individual to individual and situation to situation. Combine that with the very different power levels that these devices produce and it is going to very much be a challenge of “trial and error” to attempt to find your own optimum exposure.
Of the three belts the Comfytemp belt appears to be by far the best belt.
