I agree. I have three of these FCUs each spurred from a different socket. One to some brick lights, one to decking lights and the third in readiness for the pond pump.Something isn't right here and I would advise against connecting anything without first getting someone in to look at it.
I've simply changed the FCUs to ones with LEDs.. The brick and decking lights work fine, but the pump one didn't seem right.
And given that these electrics are repairs to a conservatory after a fire caused by electrics, I am extra cautious.