400 Volt Super HPS technology is much more efficient than standard HPS, running at a higher frequency with a higher voltage and a lower current, producing a greater lumen output for the same power consumption. The Adjusta-Watt Super HPS kit offers you this professional-grade technology for a price that's within the budgets of most hobbyists! Expect to see an increase in yield of anything up to 20% over a typical HPS set-up!