The product did not perform as indicated. I almost burned the wire itelf trying to get it to shrink to fit the 14 gauge underground wire I was trying to splice. In the end, I used lots of high-grade caulk at eeach end an dcovered it with lots of heavy duty electrical tape, buried it and hoped for the best. I have used a similar product many years ago that perfomed much better but that was before Internet shopping and I could not recall where I purchased it.