Spider Farmer UV30 & IR16 Bars LED Grow LightThe Spider Farmer UVR3016 Supplemental LED Grow Light Bars Set is a specialized 4 bar kit (2 UV + 2 IR) designed to supplement the spectrum of a main grow light, significantly boosting plant quality and yield. With a 23. 6 inch (60cm) length, these bars are recommended for use with main lights under 500W (like the SF2000 SF4000 G3000 series) and feature densely arranged diodes for high intensity output, unlike the minimal UV IR diodes often found in