Works with AC Protein Skimmers and Waste Collectors The IceCap AC Skimmer Controller easily connects to a skimmer lid or waste collector (sold separately) and protects from overflow. It also includes a time delay and feed mode for any AC protein skimmer. The controller with a float switch sensor and a single grounded power jack that supports up to 10 amps of power. Features Grounded output heater control (single outlet)Accommodates skimmer pumps up to 10 ampsFloat Switch Overflow ProtectionFeed Timer (10, 30, 60min)5-Minute Time Delay1-year limited warrantyController Specifications Input Power: 100~240VAC Frequency: 50Hz/60HzRelay Contact Capacity: 10AController Body Dimensions: 3.125in x 5.375in x 1.125in (LxWxH)Float Switch Cord Length: 6ftPump Outlet Cord Length: 7inDelay Time: 5 MinutesFeed Timer Options: 10min, 30min, 60min Working Span: 1-24 HoursFloat Switch Probe Hole Size: 3/8in Controller Only - Requires protein skimmer and/or waste collection container.NOTE: For Indoor household use only Red LED indicates power ONBlue LED indicates heater power is ON Button Functions Hold and press the button for 5 sec. to switch the Controller ON or OFF. Press the button to activate the feed mode, which increases the intervals by 10, 30, and 60 minutes.