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Bob Eley writes:
I recently had the need to change a blown fuse and had a horror of grovelling in the wardrobe to find the duff one.
I was however delighted to find that Murvi have recently started to fit the new “smart fuse“, which is marketed by Halfords as the “LED blade fuse”. As indicated, when the fuse blows, a tiny LED lights up and makes it unmistakable as to which fuse has bust. These are now labelled simply “LED fuses”