222-413 | WAGO Lever-Nuts® | Original Lever-Operated Splicing Connector | for Solid and Stranded Conductors | 3-Conductor with Operating levers | 28-12 AWG | Gray housing | [Box of 50 Pieces]

I was introduced to WAGO products at work, where we manufacture custom training equipment for airlines and the military. WAGO is a european company that specializes in high-quality, high-reliability electrical connection products. In the past few years, WAGO has begun marketing some of their products to consumers, and their line of LEVER-NUTS connectors is one of those products. These are also sold to industrial and professional customers -- they aren't some cheapie knock-off. These connectors are amazing -- with one device you can reliably join wire from 22 gauge to 12 gauge, solid or stranded, mix-and-match. And the connections are SOLID -- these use a variety of WAGO's "cage-clamp" connector that uses spring-loaded contacts and geometry to create a connection that actually tightens under vibration and tension, rather than loosening and failing like screw connections, wire-nuts and IDC connectors.If you ever have to join wires that you can't easily solder, these connectors are the next best thing -- or perhaps it's a tie.To operate, you pull the orange lever away from the body to 90 degrees, insert the (stripped) wire, and snap the lever back.You're done.The levers can be a little stiff the first time you operating them, but have faith -- they are very strong polymer.Each port in these connectors is reusable without degradation, and each port can (although not recommended) be used with multiple (small) wires at the same time. They should be the same size and type (solid vs stranded) however, and not twisted together.

These were amazing. With some dielectric grease (3m silicone grease) they are even good for aluminum to copper (check your local code) . They are way easier and more secure than wire nuts. It saved me from a situation where the ground(old wiring) had a copper crimp for a pigtail and it was loose making a bad connection, aluminum wiring... Had to cut it out and it left very little wire to work with inside a box that already had a sleeve in it cause it was an inch back from the surface. Never would have gotten a wire nut in there, let alone one of those purple aluminum to copper ones. Got this in and securely set. They are so much faster to use and secure. Less exposed wire. Only 10 mm stripped. I'm never going back to twist on wire nuts. Buy these and the 2 lever in bulk, you won't regret it. If you aren't sure let me tell you it's worth it. They are smaller than a wire nut. They hold stronger. Just order them.

(In case it doesn't specify, my review is for the 3-hole version, but I would assume the other ones work just as wonderfully) - -Honestly these things are a great idea and work flawlessly. The only "problem" i had was due to my own ignorance in how to use them - i thought i only had to lift the levers until they were "loose" to open the connector, but quickly found out that you have to flip the lever all the way up (until it sort of clicks into place, straight up) to actually do so. Watch your fingers when closing a lever, as they close with a decent amount of force. Not going to result in injury by any means at all, but they will give your finger a good flick.Anyway these things hold onto a wide range of wire gauges and work flawlessly with both solid and stranded wires. And when I say "hold onto" i mean they really aren't letting that wire go unless you're really, really trying.Another nice/unexpected feature is the small slot in the top of the connector for inserting a multimeter probe for testing/measurement.I wouldn't hesitate for a second to recommend these to anyone.ALSO i would absolutely recommend buying these official WAGO ones and not some "clone" product made by another company but made to look like it's a WAGO, as I've heard the unofficial versions have bad quality issues.*I PAID FULL PRICE FOR THESE AND MY REVIEW WAS NOT REQUESTED OR INFLUENCED IN ANY WAY!*wanted to clarify that :)

They are easy to use and clamp tightly. A little bulkier than wire nuts, but they make it easier to keep to wiring inside of the junction box neat and tidy. If anything has to be disconnected and / or reconnected in the future these will make the job much easier. So far I really like them.

They are expansive but worth it; they save time. No more twisting and taping wires. The tabs for open/close are genius! The tabs are small, so big fingers could find them not so easy to use. The construction is solid. After wires are inserted and closed properly, nothing feels loose. The gauge on the back helps you measure exactly how long the exposed wires should be. For 3 or less connectors, they are about the same size as the twisting wire nuts. For 4 or more connectors, they are smaller. Since the wires do not need to be twisted, they require less wire length as well. This could be very helpful in situations where the wires are just a little too short for comfort with the regular wire nuts.

These are great. They make wiring projects go fast and they take up little room in junction boxes. They also allow releasing a wire making re-work really neat and easy. I recently used several when wiring some lighting and outlets. Highly recommended. My initial use was with solid #12 wire. I recently replaced a ballast in a florescent light. For this task I made use of 2, 3, and 5 lever Wago lever-nuts with both solid and stranded #16 wire as well as #12 wire. They made the job much easier than it would have been using traditional wire nuts. I suggest getting a box of the 2, 3, and 5 lever nuts as a start and then replacing individual boxes once you get low on any one style.