SJP Light&reg; 6W 2 Bulb Auto Rotating LED Strobe Bulb Multicolor Crystal Stage Light For Disco Party Club Bar Update 2 Bulbs got lots of color and brightness This is an incredible LED rotating light Bulb . Can operate within 85-260V range. Has a slight whirring sound of motor.Ideal for home party's ,disco, Bar's ,Club's ,stage and even children's rooms 1.) Make sure the bulb is plugged firmly into the socket 2.) The socket must not be connected with an extension cord for best experience.3.) If the bulb does not rotate please remove and re-insert into the socket to make sure it is firm and place well into the base.