Buying a red light device doesn't start with the highest wattage or the most LEDs. A better approach is to compare several specifications side-by-side. Below are nine points to practically compare devices.
1. Wavelengths
Check which wavelengths the device uses. Many devices combine red light with near-infrared light. Read more about 660nm vs 630nm and 830nm vs 850nm.
2. Irradiance and Dose
Wattage alone doesn't tell you how much light your skin receives. Look at irradiance and the relationship between intensity, time, and dose. See our technical explanation.
3. Recommended Distance
A reliable product page should indicate how the device should be used. For panels, distance is particularly relevant.
4. Treatment Area
A face mask and a large panel have different uses. Choose based on the area you want to treat.
5. Ease of Use
A technically interesting device is of little value if it's not pleasant to use. Consider fit, operation, stability, and ease of storage.
6. Safety Information
Check if the manufacturer provides clear instructions on use, eyes, and any situations in which you should not use the device.
7. Transparent Specifications
A good comparison requires concrete information: wavelengths, dimensions, usage time, and where relevant, light intensity.
8. Warranty and Service
Don't just look at the device. Also, check how the seller handles service, questions, and returns.
9. Price in Relation to Use
The most expensive option is not automatically the most suitable. First, determine what you actually need, and then compare the specifications.
A Practical Checklist
- Does the device suit my purpose?
- Are the wavelengths clear?
- Is the usage schedule clear?
- Do I know at what distance to use the device?
- Does the size fit my space?
- Can I realistically maintain the routine?
View the Kenza Beauty Lab Red Light Therapy collection and compare products based on their complete product information.