This is the SunBlaster T5 Lighting Kit we introduced in early 2000 to the hydroponic industry. When you are looking for flexibility, reliability and performance for your indoor growing application, SunBlaster T5HO Lighting fixtures are your smart choice.Get your favorite plants started right from seed,Take your cuttings and get them started under our SunBlaster T5HO grow lighting,Link up to 8 units from a single power cord, self ballasted design with no adaptors required