Pipe Clip Is A Holder Bat To Fix Your Downpipe Against The Wall. The Benefit Is That You Can Remove The Down Without The Need Of Any Tool To Paint The Wall.
I installed solar in our house recently, then I bought 4 of these:
Modular Contactor 25 A 230 Vac 2 No Co Jvc2 20 25 A and connected them with Ajax Wall Switches. Now I control 3 geysers and the swimming pool pump from my phone. Easy