Expand your light spectrum with our matching UV-A and Far-red add-ons. They come in 3 different versions UV-A, NIR or UV-A+NIR which can be used within 1 setup. Each add-on has its own unique spectrum. Each supplemental light has its specific application, the UV-A and NIR can be used together with separate timers for maximum effect. When simplicity is required the combined UV-A + NIR add-on is the best choice.