I bought two of these for my calamondin tree. The tree is thriving even though it is growing indoor. It does get about two hours of sunlight through the glass door in the afternoon but it needs more than two hours of light in order to become healthy. When I first got my tree (ordered online), it is not as lush as it is now. As expected, for the first two weeks, it lost some of the young leaves due to the stress it went through during shipping. Now, it has grown more new leaves and it has more flowers and tiny fruits. I bought the grow lamp that is LED. It does get a little warm but it is not hot enough to burn if your hand or the leaves accidentally touch the light or the reflector.