Vitamin L photo

Vitamin L SAD light can help lift your mood, boost concentration and energy levels or treat the symptoms Seasonal Affective Disorder and winter blues

Feeling SAD?
Bright light, such as sunlight on a clear midsummer day, makes us feel positive, alert and energised naturally. However, many people don't get enough bright light during their day, particularly in autumn and winter. The short, dark days can trigger symptoms of 'winter blues', like lack of energy, wanting to sleep more and socialise less.

10,000 luxat 16 cm2500 luxat 50 cm

Light therapy is easy to fit in while you get on with something else.

Slim and lightweight, use Vitamin L SAD light at home or take it with you to improve well-being at work or when studying.

Use Vitamin L SAD light every day for 30 minutes to recharge your batteries.

60 minrecommended treatment time at an arm's-length distance
30 minat 16 cm

Vitamin L SAD light takes up hardly any room and can be used in portrait or landscape position.

Its slim design and relatively large screen means that Vitamin L lamp combines convenience with the performance you’d expect from a much larger light.

Vitamin L is a registered trademark of Outside In (Cambridge) Ltd. It is not a vitamin, but a reference to mood-enhancing properties of light.

What people say

219 reviews
£82.50 - £99.00Best-selling SAD Light

Vitamin L®

10,000 lux at 16 cm, cool white LEDs, rippled diffuser, portrait or landscape orientation. Game-changer!
219 reviews
Vitamin L™ is not a vitamin, but a reference to the mood-enhancing properties of light
Delivery to
United Kingdom
1–2 working days — £7.802–3 working days — Free
3-year warranty45-day trial

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Rippled diffuser

Adjustable brightness and colour temperature
Day and Evening Modes

Light Source
Light Source

LED bulb, cool white, UV-free

LED - 5000K, cool white
LED - 3000K, warm white

Treatment time

10,000 lux at 16 cm — 30 min
5000 lux at 30 cm — 30–60 min
2500 lux at 50 cm — 60–120 min

10,000 lux at 20 cm — 30 min
5000 lux at 32 cm — 30–60 min
2500 lux at 50 cm — 60–120 min


Touch Interface


Portrait or landscape use


28 cm (11 inches)

33 cm (13 inches)


20 cm (7.9 inches)

32.4 cm (12.6 inches)


8 cm (3.14 inches)

19.7 cm (7.8 inches)


0.830 kg (1.83 pounds)

2.22 kg (4.89 pounds)

Medical Device
Class IIa

Lumie is certified to ISO 13485 Medical Devices, QMS standard. Lights must pass rigorous safety tests and be supported by clinical research to meet the Medical Devices Directive EC93/42/EEC.