Lumie Desklamp Notice D'utilisation page 9

D2i1109:1106 19/10/11
English
7 What time of day?
If you're using Desklamp to help with the winter blues or SAD,
bright light in the morning has been shown to be most effective so
try that first. For some people, early evening light exposure is
beneficial. Whether you're using Desklamp for winter blues, SAD or
as a general pick-me-up, once you've found a pattern that's right for
you, try to use it around the same time every day.
I find it difficult to get going in the morning
Switch on as soon as you can. If you don't have much time in the
morning, then you should aim for a top-up or full session in the
afternoon. You could take your Desklamp to work if you're at a desk
every day.
I feel sleepy or fall asleep too early
Use Desklamp in the late afternoon/early evening. It's best to avoid
bright light too close to bedtime - within about three hours - as you
may find it difficult to get to sleep.
8 LED lifetime
LEDs are different from light bulbs in that (i) they very gradually
decay rather than suddenly stop emitting light and (ii) they cannot
be simply replaced by another LED unit. LED manufacturers usually
express the lifetime of LEDs as the time to reach 70% of their initial
light output and this figure typically exceeds 50,000 hours. This is at
least 5 years and can be 20 years depending on usage. However, it is
important to also bear in mind that LEDs can spontaneously fail.
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