Mood lifting: The lamp aims to combat symptoms of Seasonal Affective Disorder (SAD) and lift your mood by boosting the serotonin cells in your brain. Product dimensions: 16.5cm x 8.5cm. Daylight therapy lamp: Get a Beurer TL 20 daylight SAD therapy lamp. LED technology: Lamp is powered by LED technology, delivering 10,000 lumen at a 10cm distance. Compact: The lamp is suitable for carrying in your bag when travelling, so you can even use on your commute to work! Ideal for winter: The ideal gadget for winter months to brighten your room on dark mornings and lift your mood. Beurer Tl 20 Daylight Therapy Lamp | Living Social