Not as cheap to buy as wire nuts but connection is faster than wire nuts, locking provides much more positive feedback, sure contact is complete than wire nuts, requires fewer tools , and you can still do half of the wiring work on the ground. When your time, safety and convenience are at stake, they are cheaper than wire nuts.
π΅ GKEEMARS 106 Pcs Lever Wire Nuts Connectors: Compact Splicing Kit for Electrical Wires - Solid, Stranded, and Flexible Wires (Blue)
9 Review
CEDFONJER Conductor Terminal Block: 24 Pack of Multi-Function SPL-1 Quick Terminal Block Splicing Type Compact Wire Connectors for Universal Soft and Hard Wire Assortment Conductors
8 Review
π WAGO 221 LEVER-NUTS 36pc Compact Wire Connector Assortment: 16x 221-412, 12x 221-413, 8x 221-415
10 Review
50-Pack Lever Connectors Nuts 5 Conductor Combination Compact Wire Connectors Fast Connection Terminal 28-12 AWG Multi Type Compatible
23 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
Robertson Worldwide ISL432T8HEMV AH 3P20160 120-277V 50-60Hz High Power Factor 4 F32T8 Linear Lamp Fluorescent eBallast
6 Review
π‘ Electronic FL Ballast ICN-4P32-N (Formerly ICN-4P32-SC) for 3-4 F32T8 F40T8 F17T8 Lamps, 120V/277V Compatibility
5 Review