The Signal Amplifier is an accessory to ensure the consistency and strength of each LED PANEL connected in series. With a single signal source, there is no visible delay effect even connected to the maximum of 500 LED PANEL.Specially made for high voltage version, each Signal Amplifier is installed to support 15 LED PANEL. For every 45 LED PANEL a separate mains supply is required. A screw type easy connector is also applicable to the Signal Amplifier for simple installation purpose.Signal Amplifier (SDL-109SA) IS ALSO SUITABLE TO RUN LED NEON TUBES