Abstract: A compact, high power, photobiomodulation (HPPBM) light device with distance measuring ring is disclosed. The light device is comprised of a hand-held cylinder with a plurality of high-powered light emitting diodes (LED), a calibrated measuring ring, a lithium-ion battery, and a universal serial bus (USB) charge port. The device combines HPPBM light with a measuring ring to ensure proper therapy. An object of the device is to maintain the reliability of the HPPBM therapy process by ensuring the light is positioned at a specific distance away from the skin at all times during self-treatment. Other embodiments can include various power levels and light spectrums for said LEDs.