Micro Inverter and Optimizer of the companies Solar Edge and Enphase can be hooked in all K2 rails (except MiniRail) with K2 StairPlate without screwing it directly on the roof. With the corresponding screws and nuts the tools can be connected with the K2 StairPlate in advance. The height of the modules and the tools to be used must be noted. Material: stainless-steel 1.4301