To my surprise, Wago is coming out with new 221-series lever-action wire connectors that offer improvements over their 222-series Lever-Nuts.
WAGO 221-412/996-010 2-Wire Lever Nuts Conductor Compact Splicing Connectors, 12-24 AWG (10-Pack) 60343606 - The Home Depot
The 221 Series LEVER-NUTS user can Connnect any combination of solid, stranded, and flexible copper wires faster and more reliably. Minimize space consumption in the junction box - by 40% compared to 222 Series. Visually inspect for proper strip length and complete wire insertion through its transparent housing.
Wago - Compact Splicing Connectors - 3-Conductor Connector - 50PK - 221-413
WAGO 221 Series InLine Splicing Connector with Lever - AndyMark, Inc
Wago Quick Cable Connector Wire Connector 221-413 50pk Compact Wire Connector Wiring Connector in Switch Box with Lever Connector Lighting Fixture
WAGO 221 Lever-Nuts 36pc Compact Splicing Wire Connector Assortment. Includes (16x) 221-412, (12x) 221-413, (8X) 221-415: : Tools & Home Improvement
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WAGO 221 Series LEVER-NUTS Compact Splice Connector MultiPack - AndyMark, Inc
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