Free shipping (DE)
4.9 / 5 | 850+ ratings
30-day money-back guarantee

FAQ - Red light lamps

How does photobiomodulation work?

Essentially, red and near-infrared light stimulates an enzyme (cytochrome c oxidase) in the electron transport chain of the mitochondria (power plants of your cells). This leads to increased ATP (adenosine triphosphate) formation and thus increased energy production at the cellular level. There are several mechanisms described in science how light has a positive effect on our body. You can find more information about light in our blog article.

What is the difference between a normal red light heat lamp and Lichtblock?

Lichtblock is not a heat lamp as you know it from the physiotherapeutic practice or as a home remedy against colds or tension. Heat lamps are about the thermal or warming effect produced by a filament. Our Lichtblock uses light-emitting diodes (LEDs), i.e. cold light, and works with very specific wavelengths to achieve an effect.

Where can I find studies on this topic?

There is a great Google spreadsheet that collects studies on photobiomodulation (PBM) / low level laser therapy (LLLT) / red/NIR phototherapy. Here is the link:

Why do some LEDs not light up?

The wavelengths of our Lichtblock are 630 nm, 660 nm and 850 nm. Wavelengths in the 850 nm range are not visible to the human eye. The body nevertheless perceives the light.

Can I keep my eyes open while the unit is on?

When holding the lamp to your face, we recommend that you use protective goggles as described in the instructions. As a general rule, you should never look directly into the light of the red light lamp, just as it is not recommended to look directly into the sun.

How do I use the Lichtblock correctly?

As with many things, the right dose is essential to achieve the desired effects. It's best to follow our recommended spacing and timing guidelines. You can find more information on the product page under the tab "Application".

Is the red light coming through my clothes?

Unfortunately, no. Only if your clothes are translucent is there a chance of achieving an effect.

Can I get sunburn from Lichtblock ?

No. Sunburn is caused by UV radiation that is not contained in the light spectrum of the Lichtblock.

Do I produce vitamin D through the Lichtblock ?

No. Vitamin D is produced with the help of the ultraviolet (UV) part of the sun's radiation (280-315 nm).

Can I replace sunlight with red light?

Lichtblock offers you a compromise, but a red light lamp does not come close to sunlight. To best support your sleep and wake rhythms and your general health, you should ideally spend as much time as possible in natural sunlight during the day. In addition to effects such as vitamin D production in the skin, which is stimulated by the sun's UV radiation (especially in summer), the light of the sun also has a direct influence on your body's internal clock. Therefore, if possible, go outside first thing in the morning at sunrise and avoid artificial light in the evening.

My question is not included

If your question is still unanswered, we will be happy to help you. You can reach us at