there popping up in grow shops and catalogs left and right.my friend and i were talking about wether or not he should order them for his store and the final conclusion was no based on the simple fact of u get what u pay for.they are saposed to be a universal bulb so either system should be able to run them.the lumen output of those bulbs was also much lower and they dont provide a color spectrum chart. good bulbs are one thing u dont want to skimp on,they are the life source of your plants,just keep that in mind and maybe look up the sun agro or the eye hortilux,there a little more pricey but there top of the line.