The power switch requires no modifications to the existing power supply cable and fits in-line between the power socket of the Spectrum and the end plug of the power supply. Pin polarity is maintained.
The rocker switch then provides an easy On/Off function, reducing wear and damage to the computer's power socket through frequent unplugging when re-setting or turning off.
Suitable for other computer power supplies up to 24V 2A with a standard 2.1mm DC Jack lead.
It is not suitable for the Sinclair Spectrum +2A or +2B black models.