. Author manuscript; available in PMC: 2016 Sep 1.

Published in final edited form as: J Biophotonics. 2014 Nov 6;8(9):740–754. doi: 10.1002/jbio.201400087

Table 2.

Optical parameters of light-emitting diode therapy (LEDT). LEDT-Sham group received a placebo therapy (device switched off) with the same time of treatment.

Number of LEDs (cluster): 40 (20 infrared-IR and 20 red-RED)

Wavelength: 850 ± 20 nm (IR) and 630 ± 10 nm (RED)

Pulse frequency: continuous

Optical output of each LED: 50 mW (IR) and 25 mW (RED)

Optical output (cluster): 1,000 mW (IR) and 500 mW (RED)

LED cluster size: 45 cm²

Power density (at skin surface): 80 mW/cm²

Treatment time: 90 s

Energy density applied (at skin surface): 7.2 J/cm²

Application mode: without contact

Distance from mice or power meter: 45 mm