SunSprite Logo

Personal Light Tracker.

Improve your energy,
sleep and mood.

Developed by Doctors

Light and UV information is based on 30 years of scientific research.


SunSprite runs on sun, just like you. No cords or plugs. No batteries to replace.

Gives Useful Feedback

Instantly know your current exposure and progress toward your goal.


Clips anywhere, never needs to be plugged in, one simple progress check button.

Sync Your Stats Wirelessly

iPhone screen shot of SunSprite app dashboard
Android screen shot of SunSprite app history
Quote icon

I love it. It's light, small, attractive and has a great magnet to keep it in place. It's a fun way to get motivation for more sunlight.
— Sharla

Bring Your SunSprite to Life

Alive is a handcrafted jewel case specially designed for the SunSprite. Inspired by the historical sun etchings, the piece features a pierced sun motif that is hand carved and cast in solid brass with silver or gold platings.

One button. Instant feedback.

SunSprite led instructions

Press side button to see your daily progress.

SunSprite led instructions

Each LED represents 10% of your daily light progress.

SunSprite led instructions

If the next light is flashing, you're in bright enough light.

SunSprite led instructions

Once you hit 100%, SunSprite does a victory dance!

Latest From SunSprite Blog

Wearable light meter battles America’s love of pills

Read the Article on Medium.

Why that wearable light meter is SunSprite! And it’s sounding a little heroic in entrepreneur and journalist Henry Copeland’s wonderful account of its birth and development. Along the way, Henry gives a great summary of the science of light and mood. We encourage you to have a look at it. You can also follow his ongoing discoveries about what light is bright and what light is not as he takes his SunSprite out for a spin: Want to see a SunSprite in action with some real world data from a cloudy day? Check out this Instagram post. We’re so glad that Henry heard about SunSprite from two of his friends.

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How LED Lights Impact Our Sleep

LED lights are taking the lighting market by storm due to their greater longevity and energy efficiency compared to incandescent and fluorescent bulbs. They are now to be found in every application and appliance from our televisions and laptops to our smartphones. However, despite their benefits they can also have a negative impact on our sleeping patterns. Read on to find out more. And check out this article for more information on LED lights and different solar lighting solutions.

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Nobel Prize Shines Spotlight on Circadian Rhythm

The Nobel Assembly at Karolinska Institutet has today decided to award the 2017 Nobel Prize in Physiology or Medicine jointly to Jeffrey C. Hall, Michael Rosbash and Michael W. Young for their discoveries of molecular mechanisms controlling the circadian rhythm.

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Improve your energy, sleep and mood now!