Glass door electric strikes are basically of two types. Versions to be used for doors partly made of glass or full glass models have to be differentiated.
The strike has to be selected according to the glass thickness. Some models can be adjusted between 9-12 and 13-15 mm.
12V and 24V operation is selectable by a switch. A built-in supressor diode ensures surge protection. Thus you do not have to decide mode of operation at selection, or if you would like to have the strike with or without diode. A single version covers it all.