Custom Install Parts Swimming Pool SMD LED 33 Watt 12V Volts Color Changing Replacement Bulb Lights Brand new direct replacement screw fitting underwater swimming, multi color changing pool bulb. NEW VENTED BACKS! With vents on the back of the bulb it allows the bulb to stay cool and not over heat. This makes the bulb last longer. 5 year warranty! (see bottom for more details) Color Changing! 12V 36 Watt