Maxibright T5 4ft 4-Tube 216W Propagation UnitMaxibright T5 4ft 4 Tube 216W Propagation Light The larger format Maxibright T5 for serious propagation 4 x 4 foot blue 6500K tubes giving exceptionally even light spread across a large propagation area. For growers running multiple propagation trays, mother plant areas, or small vegetative setups where T5's cool output is exactly what young plants need. Why growers choose the Maxibright T5 4ft 4 Tube: 4 x 4ft 6500K blue tubes high output T5 spectrum