I like the innovative stuff. There it is. There is a magical side to see the plants grow in total autonomy. It's fun to see the light cycle laugh of the day and night (incidentally pensz to plug the morning if you do not want a light all night: it starts by roughly 12 Hours of light). By cons, 100 is really overpriced product a little gadget. I have the idea but ca 35-50 would seem to me more justified given the benefits.