You don't need to worry about a twist between the wires when you combine the wires. All kinds of standard test probes can be used to check the lever nut. There is a test hole at the back of the lever nut and the hole are designed to check whether the wires have electricity or not.
eBay
5pcs Alligator Clip to Alligator Clip Multimeter Test Lead Cable Line Jumper Wire 100cm Electrical Test tools
Aliexpress UK
Size: approx. 88 14 11mm, 103 16 12mm, 109 17 13mm. Insulator material: ABS. Color: White.
eBay
JZDZ 20cm 2pcs 2mm Small Banana Plug to Alligator Clip Test Lead Jumper Wire Electrical Testing Cable Red Black J70097
Aliexpress UK
Specification:Feature: Dual Row, 2 Positions, Screw Barrier Terminal Block.Each pair of terminals is insulated from the next, prevent circuit in .Description:Feature: Dual Row, 2 Positions, Screw Barrier Terminal Block.Each pair of terminals is insulated from the next, prevent circuit in confusion.
eBay
LAOA Cable Cutter CR-V Cable Pliers Electrical Wire Stripper Combination Multifunction Hand Tools 6 8 10 Inches Crimping Pliers
Aliexpress UK
US-Wire Connectors. UK-Wire Connectors. Dismantle the orange operation handle straight and plug the wire into the hole. 【Widely used】The connector for joining braided and solid wire and wires of differing sizes.
eBay
LAOA Cable Cutter CR-V Cable Pliers Electrical Wire Stripper Combination Multifunction Hand Tools 6 8 10 Inches Crimping Pliers
Aliexpress UK
You don't need to worry about a twist between the wires when you combine the wires. These lever nuts. --All kinds of standard test probes can be used to check the lever nut. --There is a test hole at the back of the lever nut and the hole are designed to check whether the wires have.
eBay
2PCS 4mm Banana Plug to Test Hook Clips Test Leads Copper Soft Cable Wires for Multimeter Electrical Testing
Aliexpress UK
Easy to Use: Compared with traditional electric tape and connectors, it is easier to connect the wires with your hands and no tools are needed.
eBay
MASTFUYI Handheld Test Pencil Electrical Test Pen Live Wire Detector Non-Contact Voltage Detection Voltage Tester 12-1000V NCV
Aliexpress UK
Screw clamp fixing. 6 Amp Wire Connector Strip. Buy More Save More! Material:Brass and plastic.
eBay
12V Electrical Silicone Wire 18 16 14 12 10 8 6 4 AWG Heat Resistant Tinned Copper Cable For Automotive Car Solar Panel Battery
Aliexpress UK
30/50/60/100/150/200pcs of 2 Way Spring Wire Connector. Press the spring clip. -The spring piece of this product is made of manganese steel by stamping, and has good clamping elasticity. Wire Range: 0.5-2.5mm2, A.W.G: 22-14.
eBay
Adjustable Electric Wire Stripper Pliers with Non-Slip Grip Ideal for Electrical Cable Decrustation
Aliexpress UK