I have some plants under the lamp and some not. The differences are clearly visible, the plants under the lamp clearly see vital and green and are also a few centimeters bigger. That should be enough confirmation for the lamp!
However, a bit disturbing, light color, the purple is quite loud and even in the outer point of view, it can be very annoying. Therefore, the best place in another room if possible.
The lamp operates with an ordinary E27 socket that you can actually buy this without any problems. In addition, it is equipped with 12W compared to non-LED lamps plant very energy efficient.
I am satisfied, the plants are too. For the winter season is definitely a very good acquisition for amateur gardeners!
