Guider till skönhetsapparater

Facial LED Exposure: Irradiance, Dose, Time and Distance
Minutes alone cannot define facial LED exposure. Learn how irradiance, time, pulsing and positioning affect dose calculations, what the numbers leave unknown, and which device documents to verify before changing...
LED Count vs Coverage: What More Lights Can and Cannot Tell You
An LED count is only useful when you know what is being counted. Learn how to distinguish packages from chips, interpret wavelength-specific layouts, and assess coverage documentation without treating more...
Electrical Wattage vs Optical Power in LED Beauty Devices
A watt label may describe electrical input, an LED rating, or radiant output. Learn how to separate these quantities, interpret combined wavelengths, and identify the measurements needed to describe light...
Temperature and LED Light: PBM vs Topical Heating
Warmth is not a reliable output test. This guide separates PBM from topical heating and explains what mode-specific records, optical measurements, and thermal documentation can tell you.
Why Equal J/cm² Does Not Make Two LED Protocols Equivalent
Two LED protocols can report equal J/cm² while delivering light differently. Understand the limits of matching dose numbers and the information needed to compare exposures and study results responsibly.
Uniformity Matters: Reading a Multi-LED Output Map
One central reading cannot describe full-face LED coverage. Learn which spatial values and measurement conditions to check, and why an output map does not establish clinical benefit or a treatment...
Why Lux and Lumens Cannot Set a Red-Light Skin Dose
Lux and lumens describe light weighted for human vision. Understand why skin-exposure assessment needs radiometric measurements, how near-infrared changes the picture, and what to check before trusting a meter or...