Maytronics Dolphin Power Supply w Timer (9995678 US ASSY) lightingbulbs This version is especially useful This version is especially useful when the application requires the PS6003 LH format with support for P1 0 horsepower rating and single speed design give this unit practical value because they offer a clear replacement target for systems that do not need more complex motor control A power supply with timer provides the operating power and timed control support a compatible robotic cleaner needs to function This type of part is especially useful when the original power supply has failed electrically or lost dependable timer function while the cleaner itself remains serviceable