- Wavelengths
- The Dr. Renú SpectraLift™ Advanced emits at 465 nm, 530 nm, 630–660 nm, 850 nm. The Omnilux Contour Face emits at 633 nm, 830 nm. Both cover red and near-infrared, the two ranges with the strongest published evidence for skin.
- LED count
- The Dr. Renú SpectraLift™ Advanced carries more diodes: 280 against 132. Diode count sets how evenly light reaches the face — a coverage figure, not an efficacy figure.
- Published irradiance
- Both publish an output figure: the Dr. Renú SpectraLift™ Advanced states 26,9–50,0 mW/cm² por modo · rojo/NIR 38,4–42,6, the Omnilux Contour Face states ~30 mW/cm². Only four of the nine masks this site compares publish one at all.
- Regulatory
- The Dr. Renú SpectraLift™ Advanced prints a searchable 510(k) number (K253712); the Omnilux Contour Face states its clearance without printing one. These devices are FDA cleared, not FDA approved — clearance is a safety and manufacturing signal, not proof of results.
- Session and modes
- The Dr. Renú SpectraLift™ Advanced runs ~10 min per session (9 modos seleccionables). The Omnilux Contour Face runs 10 min (programa único, 3–5×/semana).
- Fit and power
- Dr. Renú SpectraLift™ Advanced: silicona flexible, 300 g; recargable, 2000 mAh, USB-C. Omnilux Contour Face: silicona flexible; controlador recargable.