I believe they only offer one plasma light. Its a 300 watt rating. I havent seen any grow's with a plasma light. You're ballsy to try one! Make sure you put up pics if you got the plasma ones!what wattage are plasma?
You'll know if you bought a plasma or not by the price. Each plasma unit runs about 1100$, each gavita pro 1000 de runs about 500-600$.