I didnt say nightscaping did I. I am not sure how they screwed a 50a fuse in. If I am mistaken as you say then the 50A on the fustat must have have been a typographical error. I never said it wasnt installer error we are talking about lighting NO NO's not product prefferences or secondary protection. I agree fuses do provide a good protection, This is why I use an inline fuse for any structurally mounted fixtures with the lowest possible rating.. However in our climate I find more fuse sockets rusted or rotted out than I do working ones. I am quite sure there are at least 1000 perfectly good working power centers in my area. On the magnetic breakers. If you overload it once again it is installer error just like installing a fuse that is too large.