Dosing
Understanding how light energy is measured helps explain why Rejuvulite was designed the way it is.
Light dosage in research is typically expressed in two related ways:
- Intensity (irradiance): power delivered per unit area, in milliwatts per square centimeter (mW/cm²).
- Energy (fluence): total energy over time, in joules per square centimeter (J/cm²).
Rejuvulite’s latest generation emits an average optical power of approximately 1.6 W, depending slightly on battery voltage and spectrum (red or blue). The light is distributed over a 13.75 cm² lens area, resulting in an average intensity of about 116 mW/cm². At this intensity, a one-minute session delivers approximately 7.0 J/cm² (about 96 J total over the illuminated area). Each standard two-minute cycle therefore provides roughly 14 J/cm² (about 192 J total).
Rejuvulite uses 660 nm red and 450 nm blue LEDs selected for spectral precision and power efficiency. These wavelengths are widely reported in studies exploring biological responses to light exposure.
This information is provided for transparency regarding device performance and is not intended as a medical guideline or dosing recommendation.
Technical summary
| Output power (avg.) | ~1.6 W |
| Illumination area | 13.75 cm² |
| Intensity (irradiance) | ~116 mW/cm² |
| Energy per 1 min | ~7.0 J/cm² (≈ 96 J total) |
| Standard session | 2 minutes (one button press) |
| Energy per session | ~14 J/cm² (≈ 192 J total) |
| Wavelengths | 660 nm (red), 450 nm (blue) |
Safety
- Discontinue use if any side effects occur, including irritation or discomfort.
- Eye safety advisory: avoid staring directly into the LEDs. During use, keep your eyes closed or avert your gaze, and avoid prolonged direct exposure.
Disclaimer
Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Rejuvulite is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.