2 pin plug for wire connection to electrical socket.
For applications that do not require earth.
UK standard 2 pin head.
How to use:
1) Twist and force out 2 pin connection head (white)
2) Loosen screw to allow wire to slip into connection holes at the side (do not let screw drop out)
3) Tighten screws back
4) Assemble 2 pin connection head back to body