I am now on my second Lumie Elite as the first one simply stopped working and had to be replaced. The second one then developed some peculiar habits. If I use it as a reading light, it turns itself off after an hour and a half and then refuses to let me turn it on again. If I wait for a few minutes and try again, it turns on, only to turn itself off again four minutes later. I have been told by Lumie that this is normal and that an hour and a half if an excessive time to read for. Also, the menu keeps changing with items disappearing and reappearing apparently randomly. Add to this the fact that whatever time I set the alarm to, it defaults to 7 am and I am pretty fed up. When I told Lumie about these problems, they simply chose not to answer me and explained that I might be having problems with the "complicated" menu. My reply that I had been in the tech industry, specifically in software development for more than 10 years, cut no ice at all and the sales manager continued to maintain that I had misunderstood the device.
All in all a dreadful experience and I would recommend that you did not buy one, or if you really feel you must, buy from a retailer with a really good returns policy. You may well need it.