T5 lighting is the latest development in fluorescent technology that is revolutionising both the commercial strip lighting and now horticultural lighting world. As well as being cheaper to buy, cheaper to replace and cheaper to run than traditional fluorescent tubes, the T5 High Output (T5HO) versions of these lamps are ideal for propagating young plants. With a 24 Watt Output per lamp, these tubes are a lot higher output than the old Visi-Lux tubes and perform much better when it comes to rooting cuttings.