Auto Global Equipments

Poles & throws (SPST, DPST, DPDT)Affects whether you switch one line only, or line + neutral, or also have throw options. 4 pins usually means DPST (double pole single throw) or DPDT (double pole double throw).
Indicator / lightUseful to show ON/OFF visually. Adds a small extra load. Check its rated voltage.
Body material & insulationHeat, safety, flame resistance, etc.
Terminal style & spacingMakes wiring easier; ensure it fits your panel cutout.
Durability / cyclesHow many switchings before failure.
Certifications (CE / UL / IS etc)Especially for safety and regulatory compliance.