As the text placement indicates, the switch function is between the closest pins
and the lamp is between the middle and the more separated pin
Thus the lamp can be used to indicate power available
or item switched on depending on how you wire it!
The switch capacity is 10 A @ 250 V~
The lamp is a neon lamp with a resistor for use at 220 V.
As most neon lamps, it ignites around 50 V and shines pretty good at 120 V.
This switch is intended for a mounting hole measuring 12 X 30 mm.
this switch has a nice tactile feel.