The Cosmorrow 20 W Ultraviolet LED bar by Secret Jardin is designed as a versatile booster light to strengthen plant health and enhance flowering phases. It blends two-thirds of cold white LEDs at 6500 K with one-third near‑UV emitters at 365 nm, delivering targeted ultraviolet supplementation that promotes compact, bushier growth while helping inhibit mold and fortifying plant immune responses. Built to withstand humid and challenging indoor environments, the Cosmorrow UV bar carries an IP65 rating, features passive thermal management with minimal heat output, and offers a long operational life, typically rated at 20,000 to 50,000 hours depending on the source. The Secret Jardin Bulb HPS250W grow lights are highly effective, but if you want to dip your toes into other devices, then check out their HPLED 200W Full Spectrum or even the Bulb HP400W.
