They work in specific applications. Wire gauge must be correct for them to actually work. They are good for some things, but not for everything.
π WAGO 221 LEVER-NUTS 78pc Compact Splicing Wire Connector Assortment with Case: Convenient and Versatile Solution for Electrical Connections
10 Review
π WAGO 221 LEVER-NUTS 36pc Compact Wire Connector Assortment: 16x 221-412, 12x 221-413, 8x 221-415
10 Review
π 50-Piece Compact Wire Connectors with Lever Nuts for Easy and Fast 4-Conductor Combination Terminal Connections - Suitable for Multiple Types, 28-12 AWG
25 Review
π TYUMEN Low Voltage Wire Connectors - Toolless, Quick Splice Terminals for AWG 20-24 Wires
8 Review
π‘ Hydrofarm Quantum QT400 Dimmable Ballast for 400W Grow Lights
5 Review
π‘ Electronic FL Ballast ICN-4P32-N (Formerly ICN-4P32-SC) for 3-4 F32T8 F40T8 F17T8 Lamps, 120V/277V Compatibility
5 Review
π‘ High-Quality Advance ICN-4P32-SC Electronic Fluorescent Ballast: Ideal for 4 Lamps, 32W T8, 120/277V
3 Review
Fulham WorkHorse WH2-120-C Adaptable Ballast - 2 Pack
3 Review