To test the effectiveness of this grow light we planted several identical pots with cucumber sprouts. The first set of pots was left to to grow near a sunny window inside and another pot was left in an area which does not get direct sunlight and was left under a grow light. The grow light was on a timer for 14 hours a day (off at night).
The attached video is a video diary of the two plants with photos taken every day for 11 days. As you see at the end of 11 days the plants under the grow light is shorter and and has more leaves, the plant in the window is taller (stretching towards the light) and has a couple less leaves. Shorter leafier plants are generally better then the taller skinnier ones.
EugeneGreen 12W Grow light fits into a regular bulb fixture. It has 3 blue and 9 red LED lights to simulate sunlight. The light weight 9.15 oz and is 5.5" long, and 4.75" wide. The light feels well made. The finish of the bulb looks neat, and when I shake it nothing rattles.
You can find it on Amazon by following this link.
Ali Julia review ★★★★☆