Hi guys , first i would like to say hello to all you guys been off forA few weeks due to unforseen circumstances Do anyone know where i can get 25kw and 50kw systemRelays from ? Est cost ?And thete perpose?Might have a few big jobs coming off soonAlso if anyone could shed some light on G59 testing does it still need to be performed In front of dno. I heard a sma invertet can help to dismiss the need forDno to be there while testing saving costThanks really missed this forum love mike xxxxxx