Overview
This is a 10-piece set of 30 cm test leads — one end is a colour-coded insulated alligator (crocodile) clip, the other end is a 0.1" (2.54 mm) male Dupont jumper that plugs straight into a breadboard, female pin header, or female Dupont connector. Use them to clip onto component leads, battery terminals, multimeter probes, PCB pads, or any wire too short for a breadboard, and route the signal cleanly into your prototype without solder.
Ten leads in five colours (typically two each of red, black, yellow, green, blue) make it easy to keep power, ground, and signal lines visually distinct. The flexible 30 cm length is long enough to reach across a workbench but short enough to stay tidy — great for power supplies, digital multimeters, oscilloscope probe extensions, sensor breadboarding, and quick-and-dirty test rigs.
At a Glance
Specifications
| Parameter | Value |
| Pieces per Pack | 10 leads |
| Cable Length | 30 cm (~11.8 in / ~1 ft) |
| Wire Gauge | ~22 AWG stranded |
| Alligator Clip | Insulated copper, plastic boot, ~25 mm jaw opening |
| Dupont End | Male, 2.54 mm (0.1") pitch, fits standard breadboards and female headers |
| Color Coding | Red, black, yellow, green, blue (2 of each) |
| Maximum Current | ~2 A continuous (limited by the clip and 22 AWG wire) |
| Voltage Rating | 30V DC max (do NOT use on mains AC) |
| Insulation | PVC, soft and flexible |
Connection Examples
Connecting a Battery or Bench PSU to a Breadboard
Clip the red lead onto the positive (+) terminal and the black lead onto the negative (−) terminal. Push the male Dupont ends into the power rails on a breadboard.
| Lead Color | Source | Breadboard Rail |
|---|---|---|
| Red | Battery + / PSU + | + rail (V+) |
| Black | Battery − / PSU − | − rail (GND) |
Quickly Testing a Component Off-Board
Clip the leads to a component's wire leads (resistor, capacitor, LED with resistor, fuse, switch), and plug the Dupont ends into a breadboard or directly into a multimeter via female-to-banana adapters. No soldering needed.
Extending a Sensor Probe
Use the alligator end to grab onto a thermocouple lead, NTC probe wire, or piezo disk; route the Dupont end into your microcontroller's analog input. Keep wires short for high-impedance signals to minimise noise pickup.