You need to add a 12Vac/2A mains transformer.
Kit version includes solder for assembly.Specifications
|Output Voltage||12V dc fixed|
|Output Current||2 Amps max|
|Board Connections||Solder Posts|
|Product Formats||SELF-ASSEMBLY Electronic Kit (KT) or|
PRE-ASSEMBLED Electronic Module (AS) Product Formats Info
This electronic kit provides a powerful electronic siren with an impressive 5 Watt power output. Suitable for connecting to alarm systems, cars, motorbikes, etc...
A siren driver capable of producing four different sounds one of which is a simple tone and the others are more complex sounds similar to the sirens used by the police cars, ambulances and the FBI...
This well designed stereo power amplifier can be used to boost the output of an existing car audio system...
This simple but useful project is designed to monitor temperature and switch the onboard 240V/1.2A relay at a given temperature. Trigger temperature is adjustable...