Unfortunately expensive ... but good

Those who have joined before in a flush-mounted socket or a little damp proof junction box with profane swearing 4 NYM cable, already gets joy Pipi in the eyes when he has the black plastic cylinder for the first time in his hand and it becomes clear how much space is there. Then you realize that you can create virtually "outside" the connections yes, the cylinder is indeed behind screwed over. Even at temperatures just above freezing and on the ground squatting (because the gala farmer had the existing underground cables damaged when digging with a spade and not a lot about was to there to connect the lamp cable), the 4 lines (supply line were 5 x 1 , 5, lamp cables 3 x 1.5) mounted in a few minutes, without which it was somewhere fiddly, and all buried. Whether it remains tight, showing the years, but the solution is very easy to install.