T8 15 watt UVB growth light

T8 fluorescent UVB Lamp are more compact and efficient than older forms of fluorescent lighting which allows them to be used for all plants rather than just for seedlings. Key advantages of these high-end fluorescents include: more of their light is used by the plant

fluorescent grow lights had too low an output and were too big and bulky to be of much use except as a grow light for seeds or seedlings. Generally fluorescents are a poor choice for flowering and budding plants because of their low lumen (brightness per unit of energy consumed), but they are a great source for herbs and other plants that don`t need a lot of light.