Bluetooth is a wireless technology standard for exchanging data over short distances (using short-wavelength UHF radio waves in GHz) from fixed and mobile devices. It was originally conceived as a wireless alternative to data cables.
We can use HC-05 Bluetooth Module to connect evive with phone Bluetooth
HC-05 is easy to use Bluetooth Module having Bluetooth V2.0+EDR (EDR: Enhanced Data Rate). It can be used as master and slave both modes programmed Serially and communicating Serially.
We can Use evive Bluetooth Application for the same Use.
Here 9V battery is used as a power source. You can use Standard AC source instead.
Make sure that connections of bulb are made in NO and Common.