I've bought Full Spectrum LED Grow Light Lamp for my home flowers, because in my city too less sunlight for best growing plants.
After few days i've seen that it's really working. Flowers move their leaves to lamp like to the sun. It's looks great. Became feel that you can control them and tell them where they should look.
And i think, if plants like it, it's usefull thing.
It easy to install and absolutely safe.
May be light of this lamp can make some discomfort for your eyes, but it's not so bad. You shouldn't use it every day all day. It's need only in rainy weather or if plants get less sunlight than they need.
At the end i think that it's great thing for all, who love plants.