1. Measure diameter
See image for details.
Do not identify a connector from voltage alone. Compare the physical interface before ordering an adapter.

See image for details.
Measure centre-to-centre spacing and pin diameter. 6 mm is the standard space.
Our connectors with swicth currently known notches, flats, slots.
| M15 family | Photos and confirmed dimensions to be added. |
| M17 family | Two-pin connector used by some generic low-voltage systems. |
| KS M18 | OpenLVB name for the larger connector found on selected Konstsmide low-voltage products. |