Quality construction and technical innovation make High Yield Lighting grow products one of the best in terms of performance and maximum plant growth. HTG Supply offers High Yield Lighting products including grow lights, timers, reflectors, ballasts and other indoor growing equipment. For superioir growing results, consider a digital ballast from High Yield Lighting. Featuring a thermal chimney design as opposed to a single box design, the AgroStar and CoolStar ballast units are designed to last, outperform and reduce contamination of your plants. Shop our selection of High Yield Lighting T5 grow lights, HPS grow lights and Metal Halide grow lights to get the most out of your yield today!