SunBooster
No sun this weekend? Part of it is already on your desk
October 18, 2026
Friday afternoon, the week is done, and there is one wish almost everyone in the North shares in autumn: a bit of sun. A walk in the light, warmth on the face, something to make up for five days under office lighting.
Then Saturday comes in grey. Sunday too. In October and November that is not bad luck, it is the season.
What the weekend sun gives you
Sunlight is more than the light you see. Over a third of it is near-infrared, an invisible part of daylight that your skin receives when you are outside. It is also the part that indoor life leaves out: modern window glass keeps much of it out, indoor lighting adds almost none, and we spend around 90% of our time inside.
So a sunny weekend gives you two things: the blue sky you can see, and the near-infrared you cannot. The first one you cannot order. The second one you can.
Part of the sun is already on your desk
That is the idea behind SunBooster. It brings back the invisible part of sunlight that is missing indoors: near-infrared light at 850 nm, from three LEDs, on a small device that clips to your screen. No glare, no visible brightness, nothing to sit in front of. It is your shield against the dark winter.
And because it is compact and runs on USB-C, it does not have to stay at the office. Clip it to your laptop on Sunday morning while you plan the week, read, write or catch up on a series, and let it work in the background. Just 2 to 4 hours of accumulated use a day can make a difference within two weeks.¹
Beat the dark winter with SunBooster. Feel brighter and live energized: your easy daily energy boost, made simple.¹
Still go outside
SunBooster is not a reason to stay in. When the sun does come out, take the walk. Daylight, fresh air and moving are the best part of any weekend, and nothing on a desk replaces them.
What SunBooster changes is the grey weekends, and the long weeks in between. The sun does not have to be in the forecast for part of it to be with you.
For what the research behind it found, read Near-infrared light indoors: what the research behind SunBooster shows.
¹ Based on a study with human subjects on the effects of near-infrared light. The SunBooster makes use of near-infrared light. For more information and the study, see our research article. SunBooster is a wellbeing device. It is not intended to diagnose, treat, cure or prevent any disease.