The new SW versions replace the popular RW series (with the exception of the RW20, which is still available).The new SW series allows external control functionality through the 0-10V port. Features:• 8 Different Flow Rates• Quiet Operation• Wireless Controller - if 2 SW pumps are used, controllers can "sync" wirelessly, to enable the SW pumps to run "in sync" or "anti - sync".• Backward compatible with RW Pumps• Easy installation and maintenance.• Magnetic bracket• Night sensor - automatically detects when tank lights go out and slows the pump. • One-touch feed mode - slows pump for a period of 10 minutes.• High performance, powerful, water flow combined with low energy consumption. • Ceramic shaft for long life and durability• Intelligent control system to generate various wave patterns to suit your tank.• Extra-long cable for ease and comfort of placement, even on larger tanks.• Low voltage, safe, reliable UK power supply.• Suitable for aquariums with glass up to 15mm thickness. SW-2 Specification:Dimensions (mm): 52W x 79.5L Flow Rate: 500 – 2,500 l/hPower Consumption: 5wMounting: Magnetic (Adjustable bracket)