AgroLed T5 iSunlight 41 watt 5,500°K T5 HO replacement LED lamp is an excellent choice for the propagation and veg cycles of your plant's life. The iSUNLIGHT® T5 lamp is an intelligent LED that is specifically designed to work with your existing T5 HO fluorescent fixture. The AgroLed T5 iSUNLIGHT® produces over 5,100 lumens with only 41 watts of consumed power. These are environmentally friendly and mercury-free lamps. This is the best AgroLed T5 iSunlight, you can use for your lamp for the propagation and veg cycle of your plants.