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The Wago inline splice connector is ideal for easily connecting up power wires in dry areas. I have used Wago in my personal life, and I hear from many people how much they enjoy using the brand. These are quicker and more reliable than the old screw connector blocks.

The 221 series is the more modern version compared to the 222 series that I fell in love with. These new connectors are much more compact, and have an even easier lever lock to operate, as well as being transparent and able to see that you have a good connection. The only down side is that they do cost more than the old school connection methods. Although the reduction in stress and tools required is probably worth it for a lot of people.