Profilux 4 vs. Jebao RW8

[LC8Sumi]

Or you can buy the official Jebao box (google "GHL to Adpater Jebao RW DC WP Pump"), and fabricate an RJ45 to RJ12 cable to directly connect it to an L-port on the Profilux (or cut off one end of an RJ45 ethernet cable, and use it with a GHL breakout-box).
This is a lot more safer and looks a ton better. If you go this route, you need a 6A 24V DC power supply (can be bought at the same place as the Jebao box) to drive two RW20's.