If getting any LED, in order to avoid returns and hassels, I always make sure that when I know the wavelength I want to know the variance in nanometers. Some will say they don't know while most websites claim plus or minus 10 nanometers.
...because every company claimed their LED panel was the best
There are 2 types of red LED that people buy - 660nm and 630nm. I would say that 50% of the people that buy a red LED buy the wrong one because they don't know which one to get, the red or the deep red.
Some people have a lot of blockages and need a deeper red. The best way is to test the voltage of the skin. Most people coming to my site have around -50mv. Those with acne usually have this. My goal is to be around -20mv. It takes about 5 seconds to tell what range someone is in. Those that infuse their LED panel once they get it with ZP will not have to worry as that will artificially do it within 30 seconds to a minute. But it only lasts about an hour as it slowly goes back to the normal body voltage.
The other way is the more joules of energy the LED is capable of delivering to the skin the quicker the voltage of the part being treated can be raised. I found the best way is to infuse the diode and having a high fluence LED. Otherwise, it will take longer to treat and may not have enough power to treat deep into the layers of the skin. The people that usually need it the most are the most reflective in their skin. I have over 600 videos of these infusions on youtube. Ask me and I will share my channel. I have to keep it private as some people get offended and see my videos as medical advice which it isn't.
Last warning: By knowing the starting voltage of the person being treated, it will help so they don't absorb too much energy from the LED. Too much blue for example can damage and permanently harm mitochondrial cell function. Using commercial grade LED panels is not a trial and error protocol. There are protocols and certain dosages practitioners need to consider. Some just have the person lay down and don't know a thing about the patient. It's like giving someone an oxygen mask and oxygen concentrator when they don't have a problem with their red blood cells transporting oxygen but the real problem is their lymphatic system and swelling is from lymph nodes that are not dumping the waste to the liver.
Note: once the area being treated is at -20 this is when I would end the session immediately. Just like when people start itching doing sauna therapy this is when the time is to end the session. If anyone has studied histamine release and itchiness, this is the body telling it to quit.
Note: for those that get their LED panel infused, if a patient complains about a tingling or cold sensation, that is a sign too. With my lasers, a laser that normally would feel hot can feel cold.
Note: another thing in case it is not discussed on the phone, if the LED panel (or the handheld LED) is infused with ZP, never move it in a counter-clockwise motion. (see my youtube videos and see for yourself what happens).
Red LEDs that are pulsing usually do not have the continuous wavelength that is done in the studies. It might be in that plus or minus 20nm but if someone wants a 630nm LED at 120mw and it is a 655nm, that is not what the customer paid for. When infusing the LED with ZP, this is the best way to tell if it is really a 630nm diode or it is way off. A red led pulsing LED will put out half the electrons of a continuous LED. Some LED panels must pulse to stay within a certain range and not get too hot. I am really tired of the loopholes. I wish some of these companies would be transparent so I wouldn't even need to build this review site.
I will only sell a LED brand to someone if I know it is what they need. If someone wants to pay 200 for a hand held and I know it's not going to deliver enough joules they need I am not going to get involved with the sale. I know how to compare LEDs even back before they became popular in this niche. I did this on my ColdLaserstore.com. (and coldlasersreviewed.com)
I also have reviewed LEDS on LipoLasersReviewed.com so I think I know this industry and the ugly stuff that some companies are getting away with it. And they know it too. It's not my job to list these brands but I will only sell and promote brands that I approve of. It's like almost every months another company wants to send me a free LED panel or some Chinese import they want me to sell. Giving me free products will not win me over and feel guilt and want to sell your product.
If you are using LED on patients
NEVER USE AN 80MW or higher wattage LED mor than 3 times per week on the same area.
Never use a blue LEd and red LED at the same time during a session or within 48 hours. An infrared light is ok but a session with BLUE and then immediately with RED is NOT recommended.
This is not a high fluence single panel Red LED like the POLY brand but these are SBT diodes. Nothing beats a SBT diode at this time. Who knows what type of LED will come out next. POLY doesn't use SBT diodes but they have a newer technology but they used nearly twice as many diodes in their red panel as LightWave from my count when I reviewed them.
Really... like I am going to but expensive serums and use a low fluence low wattage no SBT diode LED and think it's gonna help penetrate the serum in my skin better? I never go through a session without some type of enhancer but the LED panel must have enough wattage and diode fluence to deliver the energy. I also avoid the scatter type diode that are not as laser focused as the latest generation diodes.
This is a closeup of the Lightwave LED panel red diodes (above). The picture below was from another popular brand that does not have SBT diodes.