Q: What is beam angle and why does it matter?

Posted April 15, 2021
Some LED light manufacturers use a wide beam angle of 90 degrees. The problem with using a wide beam angle is that the power density drops quickly over distance. The angle that light comes out of a light source is the main factor in determining how the power density drops over distance. Wide beam angles (90 degrees) make the power density weaken very soon. If you are planning to use the light to treat a larger area (and therefore plan on sitting / standing back further from the device), you absolutely want a narrower beam angle. The Mito Red Light Collections use a narrow beam angle of 60 degrees to ensure therapeutic power density at further distances.