Make no mistake, these WILL hurt your eyes if you try to use them in a room you regularly occupy. These are designed to imitate bright, direct sunlight, and they do a fantastic job. I replaced my USB plant light sticks with the red and blue LEDs with these. This year, when I brought my potted tree indoors from the summer and put it under a light, rather than just stay alive in the cold months? It kept growing as if it were still outside in summer. I cannot recommend these enough, and have ordered two more! But make sure to put it in a room where you do not sleep, and put it on a timer so that it is unlikely to be active when the room where it is set up is in use by humans. :)

Make no mistake, these WILL hurt your eyes if you try to use them in a room you regularly occupy. These are designed to imitate bright, direct sunlight, and they do a fantastic job. I replaced my USB plant light sticks with the red and blue LEDs with these. This year, when I brought my potted tree indoors from the summer and put it under a light, rather than just stay alive in the cold months? It kept growing as if it were still outside in summer. I cannot recommend these enough, and have ordered two more! But make sure to put it in a room where you do not sleep, and put it on a timer so that it is unlikely to be active when the room where it is set up is in use by humans. :)

Make no mistake, these WILL hurt your eyes if you try to use them in a room you regularly occupy. These are designed to imitate bright, direct sunlight, and they do a fantastic job. I replaced my USB plant light sticks with the red and blue LEDs with these. This year, when I brought my potted tree indoors from the summer and put it under a light, rather than just stay alive in the cold months? It kept growing as if it were still outside in summer. I cannot recommend these enough, and have ordered two more! But make sure to put it in a room where you do not sleep, and put it on a timer so that it is unlikely to be active when the room where it is set up is in use by humans. :)

Very good product, easy installation.

Muito bom o produto, fácil instalação.

Very good product, easy installation.