Thanks to its compact size and elegant design, the TL50 is easy to place in your home or office without being intrusive. Serotonin formation is stimulated, our internal clock is brought back into sync and we feel fitter, revitalised and more balanced.

If you already know how a natural light lamp can boost your mood in the winter, but would love to enjoy the benefits anywhere you go, the Beurer TL50 Compact Daylight Lamp for SAD is just what you've been looking for. Do not touch the unit with wet hands while it is plugged in or allow water to be sprayed onto the unit. There's no maximum recommendation as you can't overdose on this kind of light, but as it's so bright we suspect you won't want to leave it on longer than you need to. Where most affordable SAD lamps look rather like somebody turbo-charged a Kindle or crashed their iPad, the circular shape of the TL50 means it looks more like a beauty mirror than a light – an impression that's immediately dispelled when you switch it on.

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While other lamps in the range boast features such as timers, smartphone connectivity or additional coloured LEDs to help you drift off to sleep, the TL50 keeps it simple: you can turn it on, you can turn it off again, and that's it. It isn't battery powered, though, so you'll need to wander around looking for somewhere to plug it in. I have a larger one on my desk but wanted something more portable and something that wouldn’t take up much space in the bedroom.Carrie has written more than a dozen books, ghost-wrote two more and co-wrote seven more books and a Radio 2 documentary series.

And because it's classed as a medical device you can get it VAT-free if you've been diagnosed with SAD. As a result, they have a similar positive effect on our bodies as natural daylight and are perfect for effective light therapy. We also have a wide range of dental supplies such as irrigators and brushes, home ECG devices and equipment to help diabetics monitor their condition.This device features an on/off switch and a light on/off function, allowing users to easily control the lighting.