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Compact two-in-one device works as a SAD light and wake-up light. Blue-enriched white LEDs gradually brighten to fully wake you in the morning; five light levels provide bright light therapy during the day to lift mood, boost concentration, restore natural energy and treat the symptoms of SAD.

If you (or the person you're buying this for) suffer with SAD (Seasonal Affective Disorder) you can claim VAT relief on products designed to help. By selecting 'Yes, I have SAD - do not add VAT' you agree to the following declaration:

I declare that I suffer with Seasonal Affective Disorder and that this zero-rated VAT product is for domestic or personal use. The supply of this product is eligible for relief from Value Added Tax under Group 12 of the Zero-Rate Schedule to the Value Added Tax Act 1994.

The lowdown

Features and spec

Zest can be used as a wake-up light for a natural start to the day. Waking up with a gradual sunrise is a signal for your body to ease production of sleep hormones (e.g. melatonin) and increase those that help you get up and go (e.g. cortisol). Wake-up lights help to keep your sleep cycle on track, boosting mood, energy and productivity levels all day.

Use Zest for bright light therapy in the winter months or when you're stuck indoors. Extra bright light is proven to put you in a better mood and make you feel more awake and using Zest every day will make a big difference to symptoms of SAD such as tiredness, over-eating and a lack of energy and motivation.

In addition, Zest is a handy size for home, work or travel (mains-powered) and so it's ideal for use as part of a jet lag plan.Compare SAD lights



  • Bright light therapy to treat the symptoms of winter blues and SAD
  • Simulates sunlight to improve mood, energy and focus
  • Energy-efficient and UV-free
  • Five light levels with automatic timer to ensure effective exposure
  • Delivers the industry standard 10,000 lux at 25 cm (full brightness)
  • Recommended use: 30 min at 25 cm at full brightness, longer if you prefer a softer light
  • 15 or 30 minute sunrise to wake you up gradually
  • Adjustable light intensity for a gentle or bright sunrise
  • Fully dimmable display / Snooze / Optional alarm beep / Power failure back-up
  • White LEDs enriched with extra blue, the part of the spectrum known to affect circadian rhythms
  • HWD cm: 13 x 15 x 5
  • 390 g

Compare SAD lights

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