... light,LED Guardrail tube tube are circular, D-shaped, U-shaped can install 96PCS/108PCS/144PCS LED lamp beads led guardrail ... colour; tube are circular, D-shaped, U-shaped (with plug, bracket);3. Every meter can be installed 96PCS/108PCS/144PCS LED ... Control Type: have two kinds:Tube control, External controller.Can overlap connectionwith DMX512 controller for IC programming, changing patterns ...