From the information they publish, the Light Relief system you purchased is nothing like the LED Technologies system, in both power or wavelength. Light Relief is broad spectrum infrared. It is basically old school. 450-495 nm, 620-750 nm, 750-1000 nm. (4 blue, 31 red and 24 infrared)
The valuable wave length is near infrared.

The 848 nm wavelength is targeted by the latest technology.

The Light Relief system is just a low power penetrating heat system using broad spectrum heat.. The laser system sounds like it was a higher power deep heat system. My chiro used a system like than on my back in the early 90's.

The technology of targeting the wavelength has greatly improved the results. It appears Dr Kahn started with a broader spectrum wavelength and may now be more targeted. He alludes to a dual function, short term and longer term response. His information says his LED systems alternate wavelengths. The Laser diode probes do only one wavelength. It is frustrating to understand these systems with limited technical specifications. Lots of selling the sizzle. Not much real data.

The LED Technologies system is not to be used for more than 14 minutes twice a day. The near infrared systems at the targeted 848 nm, even Laser Diode, trigger the mytochondria for cell growth and repair. Results do not manifest for a week or two after many repeated treatments. It has 56 848 nm LEDs and 4 red LEDs. If you want a different wavelength for the other benefits, it requires a separate LED emmitting head.

The low level laser therapy systems used by local chiros and PTs provide quick warmth and pain relief. They use obvious visible red light, not the invisible near infrared. That would not be the same as the slow mitrochondria based improvements of near infrared wavelengths.

I'd be interested if Laupala can get some technical specs of the system they use. Wavelength, power, etc.