Do not use them for a broken induction hob. We booked a repair as the telephone operator thought it might be a switch. However all they check is for a loose connection (visually) as anything else is a new circuit board which is instantly uneconomic. Cost us £83 for a visual inspection, teeth sucking and a comment of "it'll be cheaper to buy a new one". How a fixed hob can ever have a loose wire I don't know - its not as if you move it ever. Better to contact the original supplier and see if you can get an 1 year insurance policy for the item on a no fix, no fee basis.