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Class 3b lasers commonly deliver 100mW to 500mW of Power. There are 1000mW in 1 Watt. Class 4 therapy lasers typically start around 9 Watts and go up to 60 Watts. Over the last decade researchers and the medical community have been steadily raising the clinical dose for laser therapy. It has been revealed that the amount of energy or joules/cm2 that a body can handle to produce a significant clinical outcome is much more than was previously understood.
Class 4 Therapy Lasers are the optimum choice for numerous reasons and the most popular Class 4 Laser Therapy systems now range between 30 Watts to 60 Watts Continuous Wave (CW) and up to 90W peak power or more. Why? Because, higher power maximizes photon density, which dictates depth of penetration and overall saturation of target tissue at the root cause of the issue being treated.
Class4Lasers.com is the official manufacturers representative of numerous Class 4 Therapy Laser brands including REMY, and UltaLaser. Scroll down to review a comparison of different class 4 therapy lasers and see for yourself why Class 4 Therapy Lasers are rapidly gaining in popularity, in spite of some controversy over the years.
Want to have the option of higher dosage treatments, which is translated to more joules per cm squared (j/cm2) faster
Want to have the shortest treatment times (higher power translates to shorter treatment or more j/cm2 in a given time)
Want to treat larger areas such as in Neuropathy & Sciatica (due to fast treatments, can quickly move from one point to the next)
Want superior pain control through increased power and depth of penetration
Need to treat very deep areas (higher power density = deeper force of penetration)
Have a higher volume practice
Can afford a higher-end high performance laser
Wish to take advantage of tax reduction benefits
Class 4 laser therapy systems deliver the energy much faster than Cold Lasers and Class 3b lasers because they typically use fiber optics. Also, because of the high power output, they typically warm the tissue, which feels good to the patient and builds confidence, because it is obvious that the treatment is in process, compared to cold lasers, which don’t elicit much of a sensation. Dramatic pain relief and increased range of motion is often experienced within minutes as inflammation is reduced and a flood of photons creates nearly instant ATP in the cells. Additionally, pain blocking and feel good endorphins are released, which are like natural pharmaceuticals released from the brain to support healing, pain relief and mood elevation.
In cases where the energy needs to be delivered over a large or deep area, the extra power from a Class IV therapy laser (30-60W) keeps the total treatment times at less than 12 minutes, with some locations needing only 1-3 minutes and an average treatment is approximately 5-6 minutes (45W-60W Models). Practitioners gain the ability to cover more areas and support consistently positive clinical outcomes. The extra power also allows practitioners to deliver class 3b dosages in just seconds to a couple minutes or go to higher dosages for superior pain control. All these class 4 systems can deliver medium dosage like you get in a higher quality class 3b system, but you also have the choice to treat larger areas faster and deeper, and provide more consistent, faster pain control.
Over the years, there has been some controversy in the therapy laser market about class 4 lasers and their performance vs safety when compared to lower power cold lasers. This controversy is mainly driven by class 1 – 3b cold laser manufacturers spending their money and time downplaying their higher powered competition, to scare people away from what is often a superior product.
In the last decade we have sold thousands of class I, II, 3R and 3B cold laser options. The fact is, until just 9 years ago, Class IV therapy lasers were typically $30,000 to $90,000 and not a practical investment for the average practice.
What we have done with Remy, Remy FX and UltaLaser PBM Pro is raise the bar. Much more power, more feature, better warranty and significantly lower price per Watt. We understand that class 4 laser therapy systems are not for everyone, however, now that we have been able to bring prices down by 30-60%, there is really no reason to not get a class 4 laser.
Practitioners are getting wise to the many undeniable benefits of Class IV Laser Therapy and making it available to clients has become a “game changer”. If you are looking for a Class 4 laser with the best FDA Clearance, Remy Sport and Remy FX are exceptional with FDA/510k.
| Brand | Spec | Price | Notes | |
 | REMY PT30W | • 9 Watt, 10W or 30W, Dual or Quad • Wavelengths in Pulse & Continuous Wave (CW) • Laser Models with Wavelengths in Single, Dual or Quad • 5 Year White Glove Warranty | $8,950 – $14,995 | One of the highest performance class 4 laser systems at an affordable price with Personalized Dr lead training & certification. Marketing package, ongoing support, 5 yr warranty. |
| Pilot Laser | 9 watt 810nm Pulse & CW • 1 Year Warranty | $9,995 | Discontinued due to the Pilot Diode Laser unresponsive manufacturer, lack of supply and support & it is over-priced for the power and features. 1 yr warranty | |
 | UltaLaser 6 Models | • LITE or PRO, • Dual or Quad 4-wave, 7″ or 12″ color touchscreen • Human or Vet Models • 2 or 3 Year Wty | $9,995 $12,995 $16,995 $18,995 | Affordable, Versatile, Powerful, 5 Treatment Heads, 2-3 year warranty, preset protocols, easy to use, wheeled laser case included. |
 | REMY FX Elite 90W & FX 45W | 45 Watt Quad 4-Wave and 90 Watt Quad Wave • 5 Year Warranty | $21,995 $24,995 | For those who want the very best with maximum power and versatility, up to 6 handpieces. Includes deluxe cart, marketing package, 5 yr warranty and Dr lead training with certification and CME credits. |
| Eltech K-Laser | 12 – 20 watt Quad Wavelength Pulse & CW • 3 Year Warranty | $19,990 – $45,000 | Built in Italy, a popular laser, but it comes at a significant price. We prefer REMY & UltaLaser options |
Class 4 laser systems are just like other lower power systems except they deliver the energy faster and deeper with a higher concentration of energy. The higher power pushes the energy faster so that you can get to your target dosage (at depth) in a shorter time. It is the wavelength of light that determines the efficiency (based on RATS: reflection, absorption, transmission, scatter) at pushing the energy deep.
For PBM the goal is to deliver maximum energy at depth, and get a photo-chemical reaction. Thus, you want one of your high power wavelengths to be in the 810nm range (10, 15 or 30 Watts). This is the wavelength with the highest efficiency at producing a photo-chemical reaction in tissue. Now commonly referred to as Photobiomodulation or PBM for short. 810nm is the gold standard for PBM.
In cases where the energy needs to be delivered over a large problem area, this extra power keeps the treatment times at a fraction of the time compared with class 1 through 3. The average class 4 therapy laser is 20 to 100 times more powerful than a lower power cold laser.
Dosage equals average power X treatment time, so if you are targeting the same dosage, a 10-watt laser will accomplish in 1 minute what it takes 1-watt to accomplish in 10 minutes. A 30 Watt laser is 150x more powerful than a 200mW cold laser.
The extra power of Class 4 lasers allows practitioners to deliver class 3b dosages in just 1-3 minutes or go to higher dosages for superior pain control and rehabilitation. You can also use the extra power to distribute energy over a larger area, which helps reduce inflammation and accelerate healing, to help patients feel better faster. This is nicely accomplished with a laser multi-roller, or glass round face handpiece, allowing for a soothing laser massage over an extended area to dramatically reduce inflammation, increase blood circulation, move chi along meridians and distribute photonic energy over a wide area.
If desired, class 4 laser therapy systems can deliver medium dosage such as you get in a class 3b system and lower power systems, but class 4 systems give you the choice to treat larger areas, deeper areas, do shorter treatment times and provide superior pain control. It is up to the practitioner to decide how to use the laser. Since some practitioners also like to acupoint therapy, many of the above listed lasers include a 7mm acupoint biostimulation handpiece. Typically the laser would be turned down to 500mW or less and then the practitioner can safely and effectively treat body and ear points in 10-30 seconds. Two eBooks with over 500 laser therapy protocols is included with your laser purchase through Class4lasers.com
They are more expensive than class 1 to 3b systems
They must be kept moving (in general) if delivering over about 1 joule/second/cm²
They pose a higher potential risk of injury to the eyes if not used correctly (This is extremely low if everyone wears safety glasses)
REMY Laser offer the most Affordable Class IV Therapy Lasers with the most comprehensive 510k FDA Clearance Options on the market. For the very best in power, features, warranty, training and affordability, consider the REMY SPORT, REMY POD or VET, and REMY FX Elite 45W or 90W. UltaLaser PBM Pro or Lite, Class 4 Therapy Lasers are FDA Registered and available with high quality components, premium wavelengths, and high performance results, at lower prices, but with less features and add ons.
