Four 11” UV LED bars designed for supplemental ultraviolet lighting to assist primary grow lights. Helps improve grow light quality to draw out plant expressions by simulating the sun’s UV rays. Enhances fruit and flowering stages by utilizing a targeted UVA spectrum of 365nm and 395nm. Features a digital controller with ten light intensity levels and daily schedule programming. Can magnetically mount onto your grow tent's frame or canvas using the included steel bars. This product is equipped with a Type-G power plug and is compatible with the voltage commonly used in the United Kingdom.