WAGO 221 Lever Nuts 90pc Compact Splicing Wire Connector Assortment with Case. Includes (25x) 221-2401, (25x) 221-412, (25x) 221-413, (15x) 221-415

Nothing

Work well. Be careful when stuffing the wires and clever nuts back into the box, the levers can pop open.

Used these on my bathroom fan install for the first time today. The fan works and I think it passed the test and might of saved me some time.

If youre comfortable using Wagos for electrical work, this is a great little starter set. Wagos are what they are and I mainly just use them for LED lighting work or other low-current applications. Anyway, if you like to use them, this is a good handy homeowner/starter set to have around.

These are way better than wire nuts in my opinion. They cover a large range of wire gauges and make it easy to join dissimilar size wires. With wire nuts, its hard on stranded wire if you have to remove and replace the nuts. With WAGO lever nuts, theres no twisting wires together.

Excellent quality.

when you have multiple wires these are much easier to use and fit in the box. Im old school but like new tech

These make wiring a snap. I was able to remove and replace with a larger size after deciding to connect an additional line. Highly recommended.

These are a different approach to electrical wire connectivity. I find the WAGOs excellent for connecting copper stranded to copper solid wire. For the copper solid to copper solid connections I find the less expensive wire nut has them beat in most instances. A great idea as well as an easy to use product.

A litle more expensive but worth it.