After I had bought a daylight therapy device of Philip and had in continuous operation, I decided after much weighing up if the lamp is worth 120 euros to buy this lamp and I'm totally excited. The lamp runs with me all day and I'm sitting since much prefer and relaxed at his desk to write something. It relieves the eyes immensely by the fact that the contrasts are much stronger. Especially in winter you can clearly see how dark it but there is ... even though I have my desk in a large window front and always thought, since it is light. Since this lamp can no longer topen! From the optics, industrial and certainly in need of improvement, but the functionality outweighs easy. Since I gladly also 'times a klobies appearance in purchasing. In contrast to the "Our original Daylight lamps" (such has my friend) a world of difference when it comes to brightness and radiance. The original Daylight lamps emit compared quite selectively, while this lamp has a good size layer cone with no sharp boundaries. In addition, the lamp is much higher, so you're not with eye and head lamp at an altitude but the lamp head while sitting at the desk really shines down over one on the desk '.