Nokotech UV/IR BarOverview The NKOTECH UV IR Bars are specialised LED add on light bars engineered to extend and enhance the spectral output of compatible NKOTECH LED grow lights. By introducing ultraviolet (UV) and infrared (IR) wavelengths into your lighting setup, these bars help improve plant responses such as pigmentation, resin production, flowering stretch and overall canopy development. Designed for easy integration with existing grow lights, the UV IR Bars