Get growing with the SunBlaster T5HO Reflector and Bulb Combo. The reflector spreads light widely across the plant canopy without using additional power. It also reflects heat into the growing area. This helps extend the life of both the lamp and ballast. The combo mimics natural sunlight so it's ideal for plant and vegetative growth. It's self-ballasted and allows you to link up to eight fixtures together using one single outlet. Suitable for residential or commercial use.