"Despite being up to five times more expensive than some sockets you can buy, my view is that why risk your house going up in flames for a few pounds? These only cost a few pounds and they are strongly made, easy to wire up, solid, dependable, reliable. I have used these for years and never, ever, had a problem. Same goes for the one and two-way versions. Professional products and very reasonable prices - DON'T BUY CHEAP ALTERNATIVES, it's false economy."
"This suggests garden use for which you would think it has an appropriate IP rating, however it is not designed to keep water out. It is a good trailing lead extension though, heavy duty for workshop etc"