Growing plants with smart LED lights are the best solution ever invented. First of all, the light from these lamps is not harmful to plants. Secondly, it is easy to adjust it to any range that suits a certain type of plant. After I tried this kind of lamp, I could hardly go back to the regular ones because it is too convenient. I can change the color at any time. At any time, I can turn it off or make it dimmer using my smartphone. There is no way I would trade this pleasure for conventional lamps. To the question of where is the cheapest place to buy these, I suggest you go here https://www.vont.com/product/vont-bulb-c...art-bulbs/. I have ordered all of the bulbs I have installed in my house from here.