These 21-watt T5 HO replacement LED lamps are an excellent choice for the complete cycle of your plants' life. The iSunlight® T5 Bloom lamp is an intelligent LED that is specifically designed to work with your existing T5 HO fluorescent fixture. These T5 LED retrofit lamps make an excellent replacement for bloom spectrum (approx. 2500-300K) and daylight (5000K-6500K) T5 fluorescent lamps. Environmentally friendly, mercury-free LED lamps.
*Not compatible with Hydrofarm AgroBrite t5 fixtures
