... Guardrail Tube is normally used in the stage, bars, hotels, discos, KTV, bridges, gardens, riverside, Traffic Interchange, building profiles, building decoration ... round 50, round 30, and so on.LED Guardrail Tube length normally 1 meter, can choose transparent cover or ... multi-color change;7. Control Type: have two kinds:Tube control, External controller.Can overlap connectionwith DMX512 controller for ...