<span class="link_user">@Scandic</span>, It was my starting lamp and has been through every grow so far. 100W is great for German regulations, enough to get started. But now I've switched to a 720w which I ran at 560w the entire time.It was also because the lamp takes up my entire 1m x 1m tent and covers everything. 100 watts in such a large tent is boring in the long run. I've now passed it on to the next person who's starting out with it. In a small setup (60cmX60cm) it's absolutely sufficient and super