LuxStar8 4' T5 Fluorescent Light (Bloom Bulbs)The LuxStar8 T5 bloom bulbs are space saving, highly efficient light fixtures that come with a dimming feature that lets you adjust the light output by 50%. As the grow light has a low profile, you can place the light closer to the plants without worrying about them getting damaged. You can hang the grow light in 3 different ways: horizontal, vertical, and overhead. Hang in 3 Different Ways: The grow light can be hung horizontally, vertically, and