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. 2011 Jul 22;27(2):453–458. doi: 10.1007/s10103-011-0957-3

Table 2.

LLLT parameters

Parameter Value
Wavelength (nm)
 Red 660 ± 2
 Infrared 830 ± 2
Laser output frequency Continuous
Power output (mW) 50
Spot diameter (cm) 0.06
Spot size (cm2) 0.0028
Power density (W/cm2) 17.85
Energy per point (J) 5
Energy density (J/cm2) 1,785
Treatment time per point (s) 100
Number of points 4
Total energy delivered (J) 20
Application mode Probe held stationary in skin contact at 90° with slight pressure