The ECS-5 provides a 5/8 diameter connecter for some Fluence brand newer LED fixtures use PushLock Waterproof connecters for interconnecting. Like the other ECS kits, the ECS-3 comes with a 16ft RJ12 cable, a T-splitter and a special 4 ft RJ12 / PushLock Waterproof connecter cable. Features Plug & Play Package Contents1 x 16 ft RJ12 Cable 1 x 4 ft RJ12 to PushLock Waterproof connecter converter cable 1 x T-shaped Splitter Specifications32~122