Posted by My Store Admin
on February 02, 2026
In the world of beauty tech, numbers matter—especially when you are investing in home light therapy. But numbers without context can be confusing.
You might see that the Apollo S-G delivers up to 96 mW/cm² of irradiance and wonder: "Is that too strong for a home device when standard masks are only 30 mW/cm²?"
The answer lies in our unique design. We haven't just built a brighter light; we've engineered a better way to deliver it. By combining High-Performance LEDs with a calculated 1-2cm "Air Gap," we address three key considerations in home light therapy:
- The "Air Gap" Advantage: Achieving Even Light Distribution
- Why Source Power Matters: Overcoming Irradiance Fall-off
- The Problem with Hotspots: Designing for Comfortable Usage
Here is the deep dive into the physics of your glow.
3 Non-Negotiables for Effective Home Light Therapy
The Engineering Breakthrough: Why the "Gap" Changes Everything
Unlike flexible silicone masks that lay flat against your face, the Apollo S-G uses silicone eye cups to create a consistent 1–2cm distance between the LEDs and your skin.
This isn't just for comfort—it's Optical Physics.
1. Optimised Light Delivery (Inverse Square Law)
Light intensity decreases with distance according to the inverse square law—a fundamental principle of physics. When LEDs are positioned away from the skin, the intensity reaching the surface is lower than the source output.
Our Approach: We start with High-Output LED Chips (70–96 mW/cm² at LED bead source).
The Result: As the light travels across the 1–2cm gap, it reaches your skin at an optimised intensity range (approximately 35–50 mW/cm² depending on mode), which falls within parameters commonly used in published LED therapy studies.
2. The "Blanket" Effect (Light Distribution)
Direct Contact Masks: LEDs are point sources. When in direct contact with skin, you may experience concentrated intensity at certain points with less coverage between LEDs—similar to a checkerboard pattern.
The Apollo 1–2cm Gap: The distance allows light beams to diverge and overlap before they reach your face.
The Result: A more uniform distribution of light energy across the treatment area, reducing concentrated "hot spots" and providing more consistent coverage.
3. Comfortable Usage (Heat Management)
Higher-powered LEDs generate more heat. By maintaining an air gap between the LEDs and your skin, the design allows for:
- Heat dissipation into the surrounding air
- Separation between the heat source and skin surface
- More comfortable extended sessions
Your skin receives the light energy while the air gap provides a buffer from direct heat contact.
The Power Chart: Know Your Modes
Now that you understand how the light is delivered, here's what is being delivered. We believe in total transparency regarding our specifications.
Save this chart for reference
ModeWavelengthsSource Power*Suggested UsePurpleBlue + Red + NIR72 mW/cm² (Max)Combined benefits approachBlueBlue + NIR70 mW/cm²Targeted clarity sessionsRedRed + NIR66 mW/cm²Anti-ageing focusWhiteFull Spectrum66 mW/cm²General maintenanceYellowRed + Green + NIR62 mW/cm²Calming sessionsCyanBlue + Green + NIR60 mW/cm²Gentle post-breakout careGreenGreen + NIR60 mW/cm²Brightening focus
*Irradiance measured at the LED panel source. Actual intensity at skin surface is lower due to the 1–2cm air gap design.
Understanding the Specifications
What Does "mW/cm²" Mean?
Milliwatts per square centimetre (mW/cm²) measures irradiance—the power of light energy delivered to a specific area. Think of it like water pressure from a shower head: higher numbers mean more intense delivery.
Why Source Power vs. Skin-Level Power Matters
The 96 mW/cm² maximum specification refers to the intensity at the LED source (measured at the panel surface).
Due to the 1–2cm air gap and the inverse square law, the actual intensity reaching your skin is lower—approximately 35–50 mW/cm² depending on the mode and your facial contours.
This is intentional design: it allows us to use high-quality, powerful LEDs while ensuring the delivered dose remains within comfortable and well-studied parameters.
Is This Safe for Home Use?
LED light therapy at these intensities has been extensively studied and is widely considered safe for cosmetic use when used as directed. The technology is:
- Non-UV: Unlike tanning beds or sun exposure, LED therapy uses only visible and near-infrared light
- Non-thermal: The air gap design prevents excessive heat buildup
- Non-ablative: It doesn't damage the skin surface
However, as with any beauty device:
- Follow the usage instructions provided
- Start with shorter sessions if you have sensitive skin
- Discontinue use if you experience persistent irritation
- Avoid use if you have photosensitive conditions or take photosensitising medications
- Consult a healthcare professional if you have medical skin conditions
Smart Engineering for Better Results
The Apollo S-G isn't simply about "more power"—it's about better delivery.
By combining high-output LEDs with an engineered air gap, we've created a device that delivers:
- ✓ Optimal light intensity at skin level
- ✓ Uniform coverage without hot spots
- ✓ Comfortable sessions without excessive heat
- ✓ Flexible options across 7 different modes
This is the difference between simply making a device brighter and actually engineering it to work better with your skin's biology.
Ready to experience Smart Engineering?
Choose the device that understands the physics of light delivery.
Shop the Apollo S-G Photon Mask
This blog is for informational purposes only. The WAVLO products are designed for general skincare, not for medical purposes. Their effectiveness may vary depending on individual skin type, usage, and adherence to recommended guidelines. Results can differ from person to person, and the device should not be used as a substitute for professional medical advice, diagnosis, or treatment.
LED therapy should be used as part of a comprehensive skincare routine that includes proper cleansing, hydration, barrier protection, and environmental humidity control. It is not a replacement for these essential steps.
